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Finding the Fourth Proportional to 122,951.34, 169,685.58 and 75,236.40

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Solution

The fourth proportional to 122,951.34, 169,685.58 and 75,236.40 is: 103,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,951.34 : 169,685.58 = 75,236.40 : x
  2. Step 2: Convert to fraction form
    122,951.34/169,685.58 = 75,236.40/x
  3. Step 3: Cross multiply
    122,951.34x = 169,685.58 × 75,236.40
  4. Step 4: Simplify right side
    122,951.34x = 12,766,532,171.11
  5. Step 5: Solve for x
    x = 12,766,532,171.11/122,951.34
  6. Step 6: Final answer
    x = 103,834.02

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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.