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Finding the Fourth Proportional to 60,475.76, 90,728.22 and 59,471.54

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Solution

The fourth proportional to 60,475.76, 90,728.22 and 59,471.54 is: 89,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,475.76 : 90,728.22 = 59,471.54 : x
  2. Step 2: Convert to fraction form
    60,475.76/90,728.22 = 59,471.54/x
  3. Step 3: Cross multiply
    60,475.76x = 90,728.22 × 59,471.54
  4. Step 4: Simplify right side
    60,475.76x = 5,395,746,964.86
  5. Step 5: Solve for x
    x = 5,395,746,964.86/60,475.76
  6. Step 6: Final answer
    x = 89,221.65

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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.