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Finding the Fourth Proportional to 85,956,563,497.05, 128,934,845,245.58 and 85,956,563,497.05

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Solution

The fourth proportional to 85,956,563,497.05, 128,934,845,245.58 and 85,956,563,497.05 is: 128,934,845,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,956,563,497.05 : 128,934,845,245.58 = 85,956,563,497.05 : x
  2. Step 2: Convert to fraction form
    85,956,563,497.05/128,934,845,245.58 = 85,956,563,497.05/x
  3. Step 3: Cross multiply
    85,956,563,497.05x = 128,934,845,245.58 × 85,956,563,497.05
  4. Step 4: Simplify right side
    85,956,563,497.05x = 11,082,796,212,334,012,399,616
  5. Step 5: Solve for x
    x = 11,082,796,212,334,012,399,616/85,956,563,497.05
  6. Step 6: Final answer
    x = 128,934,845,245.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.