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Finding the Fourth Proportional to 268,591.68, 370,630.80 and 147,731.04

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Solution

The fourth proportional to 268,591.68, 370,630.80 and 147,731.04 is: 203,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,591.68 : 370,630.80 = 147,731.04 : x
  2. Step 2: Convert to fraction form
    268,591.68/370,630.80 = 147,731.04/x
  3. Step 3: Cross multiply
    268,591.68x = 370,630.80 × 147,731.04
  4. Step 4: Simplify right side
    268,591.68x = 54,753,673,540.03
  5. Step 5: Solve for x
    x = 54,753,673,540.03/268,591.68
  6. Step 6: Final answer
    x = 203,854.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.