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Finding the Fourth Proportional to 144,977.92, 217,261.12 and 60,647.20

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Solution

The fourth proportional to 144,977.92, 217,261.12 and 60,647.20 is: 90,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,977.92 : 217,261.12 = 60,647.20 : x
  2. Step 2: Convert to fraction form
    144,977.92/217,261.12 = 60,647.20/x
  3. Step 3: Cross multiply
    144,977.92x = 217,261.12 × 60,647.20
  4. Step 4: Simplify right side
    144,977.92x = 13,176,278,596.86
  5. Step 5: Solve for x
    x = 13,176,278,596.86/144,977.92
  6. Step 6: Final answer
    x = 90,884.73

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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.