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Finding the Fourth Proportional to 71,876.88, 99,107.88 and 60,528.96

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Solution

The fourth proportional to 71,876.88, 99,107.88 and 60,528.96 is: 83,460.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,876.88 : 99,107.88 = 60,528.96 : x
  2. Step 2: Convert to fraction form
    71,876.88/99,107.88 = 60,528.96/x
  3. Step 3: Cross multiply
    71,876.88x = 99,107.88 × 60,528.96
  4. Step 4: Simplify right side
    71,876.88x = 5,998,896,904.20
  5. Step 5: Solve for x
    x = 5,998,896,904.20/71,876.88
  6. Step 6: Final answer
    x = 83,460.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.