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Finding the Fourth Proportional to 229,404.60, 316,593.90 and 172,726.20

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Solution

The fourth proportional to 229,404.60, 316,593.90 and 172,726.20 is: 238,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,404.60 : 316,593.90 = 172,726.20 : x
  2. Step 2: Convert to fraction form
    229,404.60/316,593.90 = 172,726.20/x
  3. Step 3: Cross multiply
    229,404.60x = 316,593.90 × 172,726.20
  4. Step 4: Simplify right side
    229,404.60x = 54,684,061,290.18
  5. Step 5: Solve for x
    x = 54,684,061,290.18/229,404.60
  6. Step 6: Final answer
    x = 238,373.87

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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.