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Finding the Fourth Proportional to 69,785,645.60, 104,678,468.40 and 65,306,669.60

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Solution

The fourth proportional to 69,785,645.60, 104,678,468.40 and 65,306,669.60 is: 97,960,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,785,645.60 : 104,678,468.40 = 65,306,669.60 : x
  2. Step 2: Convert to fraction form
    69,785,645.60/104,678,468.40 = 65,306,669.60/x
  3. Step 3: Cross multiply
    69,785,645.60x = 104,678,468.40 × 65,306,669.60
  4. Step 4: Simplify right side
    69,785,645.60x = 6,836,202,150,032,841
  5. Step 5: Solve for x
    x = 6,836,202,150,032,841/69,785,645.60
  6. Step 6: Final answer
    x = 97,960,004.40

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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.