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Finding the Fourth Proportional to 90,758.73, 125,229.12 and 54,952.08

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Solution

The fourth proportional to 90,758.73, 125,229.12 and 54,952.08 is: 75,823.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,758.73 : 125,229.12 = 54,952.08 : x
  2. Step 2: Convert to fraction form
    90,758.73/125,229.12 = 54,952.08/x
  3. Step 3: Cross multiply
    90,758.73x = 125,229.12 × 54,952.08
  4. Step 4: Simplify right side
    90,758.73x = 6,881,600,620.57
  5. Step 5: Solve for x
    x = 6,881,600,620.57/90,758.73
  6. Step 6: Final answer
    x = 75,823.02

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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.