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Finding the Fourth Proportional to 226,687.90, 312,829.29 and 124,711.17

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Solution

The fourth proportional to 226,687.90, 312,829.29 and 124,711.17 is: 172,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,687.90 : 312,829.29 = 124,711.17 : x
  2. Step 2: Convert to fraction form
    226,687.90/312,829.29 = 124,711.17/x
  3. Step 3: Cross multiply
    226,687.90x = 312,829.29 × 124,711.17
  4. Step 4: Simplify right side
    226,687.90x = 39,013,306,060.73
  5. Step 5: Solve for x
    x = 39,013,306,060.73/226,687.90
  6. Step 6: Final answer
    x = 172,101.41

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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.