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Finding the Fourth Proportional to 229,500.78, 316,704.78 and 127,523.62

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Solution

The fourth proportional to 229,500.78, 316,704.78 and 127,523.62 is: 175,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,500.78 : 316,704.78 = 127,523.62 : x
  2. Step 2: Convert to fraction form
    229,500.78/316,704.78 = 127,523.62/x
  3. Step 3: Cross multiply
    229,500.78x = 316,704.78 × 127,523.62
  4. Step 4: Simplify right side
    229,500.78x = 40,387,340,016.90
  5. Step 5: Solve for x
    x = 40,387,340,016.90/229,500.78
  6. Step 6: Final answer
    x = 175,979.10

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1.5x scale

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.