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Finding the Fourth Proportional to 71,130,906.29, 98,160,750.29 and 38,535,858.29

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Solution

The fourth proportional to 71,130,906.29, 98,160,750.29 and 38,535,858.29 is: 53,179,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,130,906.29 : 98,160,750.29 = 38,535,858.29 : x
  2. Step 2: Convert to fraction form
    71,130,906.29/98,160,750.29 = 38,535,858.29/x
  3. Step 3: Cross multiply
    71,130,906.29x = 98,160,750.29 × 38,535,858.29
  4. Step 4: Simplify right side
    71,130,906.29x = 3,782,708,762,815,516.50
  5. Step 5: Solve for x
    x = 3,782,708,762,815,516.50/71,130,906.29
  6. Step 6: Final answer
    x = 53,179,538.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.