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Finding the Fourth Proportional to 88,065,963.60, 132,098,945.40 and 65,107,712.40

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Solution

The fourth proportional to 88,065,963.60, 132,098,945.40 and 65,107,712.40 is: 97,661,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,065,963.60 : 132,098,945.40 = 65,107,712.40 : x
  2. Step 2: Convert to fraction form
    88,065,963.60/132,098,945.40 = 65,107,712.40/x
  3. Step 3: Cross multiply
    88,065,963.60x = 132,098,945.40 × 65,107,712.40
  4. Step 4: Simplify right side
    88,065,963.60x = 8,600,660,145,446,503
  5. Step 5: Solve for x
    x = 8,600,660,145,446,503/88,065,963.60
  6. Step 6: Final answer
    x = 97,661,568.60

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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.