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Finding the Fourth Proportional to 65,337.64, 90,193.46 and 44,145.61

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Solution

The fourth proportional to 65,337.64, 90,193.46 and 44,145.61 is: 60,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,337.64 : 90,193.46 = 44,145.61 : x
  2. Step 2: Convert to fraction form
    65,337.64/90,193.46 = 44,145.61/x
  3. Step 3: Cross multiply
    65,337.64x = 90,193.46 × 44,145.61
  4. Step 4: Simplify right side
    65,337.64x = 3,981,645,309.71
  5. Step 5: Solve for x
    x = 3,981,645,309.71/65,337.64
  6. Step 6: Final answer
    x = 60,939.53

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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.