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Finding the Fourth Proportional to 98,546.80, 147,787.80 and 36,209.20

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Solution

The fourth proportional to 98,546.80, 147,787.80 and 36,209.20 is: 54,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,546.80 : 147,787.80 = 36,209.20 : x
  2. Step 2: Convert to fraction form
    98,546.80/147,787.80 = 36,209.20/x
  3. Step 3: Cross multiply
    98,546.80x = 147,787.80 × 36,209.20
  4. Step 4: Simplify right side
    98,546.80x = 5,351,278,007.76
  5. Step 5: Solve for x
    x = 5,351,278,007.76/98,546.80
  6. Step 6: Final answer
    x = 54,301.90

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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.