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Finding the Fourth Proportional to 59,761.20, 89,836.20 and 42,351.60

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Solution

The fourth proportional to 59,761.20, 89,836.20 and 42,351.60 is: 63,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,761.20 : 89,836.20 = 42,351.60 : x
  2. Step 2: Convert to fraction form
    59,761.20/89,836.20 = 42,351.60/x
  3. Step 3: Cross multiply
    59,761.20x = 89,836.20 × 42,351.60
  4. Step 4: Simplify right side
    59,761.20x = 3,804,706,807.92
  5. Step 5: Solve for x
    x = 3,804,706,807.92/59,761.20
  6. Step 6: Final answer
    x = 63,665.17

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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.