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Finding the Fourth Proportional to 60,077.68, 90,098.08 and 28,478.41

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Solution

The fourth proportional to 60,077.68, 90,098.08 and 28,478.41 is: 42,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,077.68 : 90,098.08 = 28,478.41 : x
  2. Step 2: Convert to fraction form
    60,077.68/90,098.08 = 28,478.41/x
  3. Step 3: Cross multiply
    60,077.68x = 90,098.08 × 28,478.41
  4. Step 4: Simplify right side
    60,077.68x = 2,565,849,766.01
  5. Step 5: Solve for x
    x = 2,565,849,766.01/60,077.68
  6. Step 6: Final answer
    x = 42,708.87

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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.