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Finding the Fourth Proportional to 65,202,139.70, 97,866,195.15 and 39,692,971.70

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Solution

The fourth proportional to 65,202,139.70, 97,866,195.15 and 39,692,971.70 is: 59,577,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,202,139.70 : 97,866,195.15 = 39,692,971.70 : x
  2. Step 2: Convert to fraction form
    65,202,139.70/97,866,195.15 = 39,692,971.70/x
  3. Step 3: Cross multiply
    65,202,139.70x = 97,866,195.15 × 39,692,971.70
  4. Step 4: Simplify right side
    65,202,139.70x = 3,884,600,114,475,628
  5. Step 5: Solve for x
    x = 3,884,600,114,475,628/65,202,139.70
  6. Step 6: Final answer
    x = 59,577,801.16

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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.