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Finding the Fourth Proportional to 60,439.38, 90,659.88 and 16,065.90

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Solution

The fourth proportional to 60,439.38, 90,659.88 and 16,065.90 is: 24,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,439.38 : 90,659.88 = 16,065.90 : x
  2. Step 2: Convert to fraction form
    60,439.38/90,659.88 = 16,065.90/x
  3. Step 3: Cross multiply
    60,439.38x = 90,659.88 × 16,065.90
  4. Step 4: Simplify right side
    60,439.38x = 1,456,532,566.09
  5. Step 5: Solve for x
    x = 1,456,532,566.09/60,439.38
  6. Step 6: Final answer
    x = 24,099.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.