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Finding the Fourth Proportional to 90,245.92, 124,535.33 and 49,956.84

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Solution

The fourth proportional to 90,245.92, 124,535.33 and 49,956.84 is: 68,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,245.92 : 124,535.33 = 49,956.84 : x
  2. Step 2: Convert to fraction form
    90,245.92/124,535.33 = 49,956.84/x
  3. Step 3: Cross multiply
    90,245.92x = 124,535.33 × 49,956.84
  4. Step 4: Simplify right side
    90,245.92x = 6,221,390,682.70
  5. Step 5: Solve for x
    x = 6,221,390,682.70/90,245.92
  6. Step 6: Final answer
    x = 68,938.19

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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.