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Finding the Fourth Proportional to 178,981.29, 246,987.54 and 98,404.02

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Solution

The fourth proportional to 178,981.29, 246,987.54 and 98,404.02 is: 135,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,981.29 : 246,987.54 = 98,404.02 : x
  2. Step 2: Convert to fraction form
    178,981.29/246,987.54 = 98,404.02/x
  3. Step 3: Cross multiply
    178,981.29x = 246,987.54 × 98,404.02
  4. Step 4: Simplify right side
    178,981.29x = 24,304,566,825.91
  5. Step 5: Solve for x
    x = 24,304,566,825.91/178,981.29
  6. Step 6: Final answer
    x = 135,793.90

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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.