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Finding the Fourth Proportional to 65,411,449.05, 98,117,173.58 and 65,411,449.05

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Solution

The fourth proportional to 65,411,449.05, 98,117,173.58 and 65,411,449.05 is: 98,117,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,411,449.05 : 98,117,173.58 = 65,411,449.05 : x
  2. Step 2: Convert to fraction form
    65,411,449.05/98,117,173.58 = 65,411,449.05/x
  3. Step 3: Cross multiply
    65,411,449.05x = 98,117,173.58 × 65,411,449.05
  4. Step 4: Simplify right side
    65,411,449.05x = 6,417,986,500,231,119
  5. Step 5: Solve for x
    x = 6,417,986,500,231,119/65,411,449.05
  6. Step 6: Final answer
    x = 98,117,173.58

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Double scale
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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.