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Finding the Fourth Proportional to 60,572.52, 90,819.90 and 39,771.72

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Solution

The fourth proportional to 60,572.52, 90,819.90 and 39,771.72 is: 59,632.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.52 : 90,819.90 = 39,771.72 : x
  2. Step 2: Convert to fraction form
    60,572.52/90,819.90 = 39,771.72/x
  3. Step 3: Cross multiply
    60,572.52x = 90,819.90 × 39,771.72
  4. Step 4: Simplify right side
    60,572.52x = 3,612,063,633.23
  5. Step 5: Solve for x
    x = 3,612,063,633.23/60,572.52
  6. Step 6: Final answer
    x = 59,632.05

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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.