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Finding the Fourth Proportional to 162,787.32, 244,178.76 and 98,760.78

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Solution

The fourth proportional to 162,787.32, 244,178.76 and 98,760.78 is: 148,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,787.32 : 244,178.76 = 98,760.78 : x
  2. Step 2: Convert to fraction form
    162,787.32/244,178.76 = 98,760.78/x
  3. Step 3: Cross multiply
    162,787.32x = 244,178.76 × 98,760.78
  4. Step 4: Simplify right side
    162,787.32x = 24,115,284,797.03
  5. Step 5: Solve for x
    x = 24,115,284,797.03/162,787.32
  6. Step 6: Final answer
    x = 148,139.82

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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.