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Finding the Fourth Proportional to 122,179.60, 168,607.59 and 74,432.92

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Solution

The fourth proportional to 122,179.60, 168,607.59 and 74,432.92 is: 102,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,179.60 : 168,607.59 = 74,432.92 : x
  2. Step 2: Convert to fraction form
    122,179.60/168,607.59 = 74,432.92/x
  3. Step 3: Cross multiply
    122,179.60x = 168,607.59 × 74,432.92
  4. Step 4: Simplify right side
    122,179.60x = 12,549,955,257.86
  5. Step 5: Solve for x
    x = 12,549,955,257.86/122,179.60
  6. Step 6: Final answer
    x = 102,717.27

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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.