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Finding the Fourth Proportional to 84,761.52, 127,163.80 and 59,850

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Solution

The fourth proportional to 84,761.52, 127,163.80 and 59,850 is: 89,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.52 : 127,163.80 = 59,850 : x
  2. Step 2: Convert to fraction form
    84,761.52/127,163.80 = 59,850/x
  3. Step 3: Cross multiply
    84,761.52x = 127,163.80 × 59,850
  4. Step 4: Simplify right side
    84,761.52x = 7,610,753,430
  5. Step 5: Solve for x
    x = 7,610,753,430/84,761.52
  6. Step 6: Final answer
    x = 89,790.20

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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.