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Finding the Fourth Proportional to 71,541.50, 107,221.80 and 62,635.02

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Solution

The fourth proportional to 71,541.50, 107,221.80 and 62,635.02 is: 93,873.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,541.50 : 107,221.80 = 62,635.02 : x
  2. Step 2: Convert to fraction form
    71,541.50/107,221.80 = 62,635.02/x
  3. Step 3: Cross multiply
    71,541.50x = 107,221.80 × 62,635.02
  4. Step 4: Simplify right side
    71,541.50x = 6,715,839,587.44
  5. Step 5: Solve for x
    x = 6,715,839,587.44/71,541.50
  6. Step 6: Final answer
    x = 93,873.34

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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.