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Finding the Fourth Proportional to 124,251.16, 171,468.54 and 67,662.48

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Solution

The fourth proportional to 124,251.16, 171,468.54 and 67,662.48 is: 93,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,251.16 : 171,468.54 = 67,662.48 : x
  2. Step 2: Convert to fraction form
    124,251.16/171,468.54 = 67,662.48/x
  3. Step 3: Cross multiply
    124,251.16x = 171,468.54 × 67,662.48
  4. Step 4: Simplify right side
    124,251.16x = 11,601,986,658.38
  5. Step 5: Solve for x
    x = 11,601,986,658.38/124,251.16
  6. Step 6: Final answer
    x = 93,375.28

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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.