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Finding the Fourth Proportional to 124,591.68, 171,936 and 68,002.92

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Solution

The fourth proportional to 124,591.68, 171,936 and 68,002.92 is: 93,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,591.68 : 171,936 = 68,002.92 : x
  2. Step 2: Convert to fraction form
    124,591.68/171,936 = 68,002.92/x
  3. Step 3: Cross multiply
    124,591.68x = 171,936 × 68,002.92
  4. Step 4: Simplify right side
    124,591.68x = 11,692,150,053.12
  5. Step 5: Solve for x
    x = 11,692,150,053.12/124,591.68
  6. Step 6: Final answer
    x = 93,843.75

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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.