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Finding the Fourth Proportional to 90,234.39, 124,524.56 and 49,951.88

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Solution

The fourth proportional to 90,234.39, 124,524.56 and 49,951.88 is: 68,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,234.39 : 124,524.56 = 49,951.88 : x
  2. Step 2: Convert to fraction form
    90,234.39/124,524.56 = 49,951.88/x
  3. Step 3: Cross multiply
    90,234.39x = 124,524.56 × 49,951.88
  4. Step 4: Simplify right side
    90,234.39x = 6,220,235,005.79
  5. Step 5: Solve for x
    x = 6,220,235,005.79/90,234.39
  6. Step 6: Final answer
    x = 68,934.19

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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.