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Finding the Fourth Proportional to 226,691.62, 312,834.45 and 124,714.90

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Solution

The fourth proportional to 226,691.62, 312,834.45 and 124,714.90 is: 172,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,691.62 : 312,834.45 = 124,714.90 : x
  2. Step 2: Convert to fraction form
    226,691.62/312,834.45 = 124,714.90/x
  3. Step 3: Cross multiply
    226,691.62x = 312,834.45 × 124,714.90
  4. Step 4: Simplify right side
    226,691.62x = 39,015,116,366.22
  5. Step 5: Solve for x
    x = 39,015,116,366.22/226,691.62
  6. Step 6: Final answer
    x = 172,106.57

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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.