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Finding the Fourth Proportional to 99,646,486.20, 149,469,729.30 and 99,646,486.20

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Solution

The fourth proportional to 99,646,486.20, 149,469,729.30 and 99,646,486.20 is: 149,469,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646,486.20 : 149,469,729.30 = 99,646,486.20 : x
  2. Step 2: Convert to fraction form
    99,646,486.20/149,469,729.30 = 99,646,486.20/x
  3. Step 3: Cross multiply
    99,646,486.20x = 149,469,729.30 × 99,646,486.20
  4. Step 4: Simplify right side
    99,646,486.20x = 14,894,133,318,010,188
  5. Step 5: Solve for x
    x = 14,894,133,318,010,188/99,646,486.20
  6. Step 6: Final answer
    x = 149,469,729.30

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Double scale
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Similar ratio
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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.