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Finding the Fourth Proportional to 144,833.20, 217,444.20 and 92,474.80

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Solution

The fourth proportional to 144,833.20, 217,444.20 and 92,474.80 is: 138,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,833.20 : 217,444.20 = 92,474.80 : x
  2. Step 2: Convert to fraction form
    144,833.20/217,444.20 = 92,474.80/x
  3. Step 3: Cross multiply
    144,833.20x = 217,444.20 × 92,474.80
  4. Step 4: Simplify right side
    144,833.20x = 20,108,108,906.16
  5. Step 5: Solve for x
    x = 20,108,108,906.16/144,833.20
  6. Step 6: Final answer
    x = 138,836.32

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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.