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Finding the Fourth Proportional to 71,598.90, 107,143.20 and 62,340.60

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Solution

The fourth proportional to 71,598.90, 107,143.20 and 62,340.60 is: 93,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,598.90 : 107,143.20 = 62,340.60 : x
  2. Step 2: Convert to fraction form
    71,598.90/107,143.20 = 62,340.60/x
  3. Step 3: Cross multiply
    71,598.90x = 107,143.20 × 62,340.60
  4. Step 4: Simplify right side
    71,598.90x = 6,679,371,373.92
  5. Step 5: Solve for x
    x = 6,679,371,373.92/71,598.90
  6. Step 6: Final answer
    x = 93,288.74

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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.