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Finding the Fourth Proportional to 83,737.02, 125,324.85 and 68,743.32

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Solution

The fourth proportional to 83,737.02, 125,324.85 and 68,743.32 is: 102,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,737.02 : 125,324.85 = 68,743.32 : x
  2. Step 2: Convert to fraction form
    83,737.02/125,324.85 = 68,743.32/x
  3. Step 3: Cross multiply
    83,737.02x = 125,324.85 × 68,743.32
  4. Step 4: Simplify right side
    83,737.02x = 8,615,246,267.50
  5. Step 5: Solve for x
    x = 8,615,246,267.50/83,737.02
  6. Step 6: Final answer
    x = 102,884.56

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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.