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Finding the Fourth Proportional to 123,937.92, 171,034.20 and 67,349.16

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Solution

The fourth proportional to 123,937.92, 171,034.20 and 67,349.16 is: 92,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,937.92 : 171,034.20 = 67,349.16 : x
  2. Step 2: Convert to fraction form
    123,937.92/171,034.20 = 67,349.16/x
  3. Step 3: Cross multiply
    123,937.92x = 171,034.20 × 67,349.16
  4. Step 4: Simplify right side
    123,937.92x = 11,519,009,701.27
  5. Step 5: Solve for x
    x = 11,519,009,701.27/123,937.92
  6. Step 6: Final answer
    x = 92,941.77

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1.5x scale

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.