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Finding the Fourth Proportional to 234,342.66, 323,391.16 and 126,910.20

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Solution

The fourth proportional to 234,342.66, 323,391.16 and 126,910.20 is: 175,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,342.66 : 323,391.16 = 126,910.20 : x
  2. Step 2: Convert to fraction form
    234,342.66/323,391.16 = 126,910.20/x
  3. Step 3: Cross multiply
    234,342.66x = 323,391.16 × 126,910.20
  4. Step 4: Simplify right side
    234,342.66x = 41,041,636,793.83
  5. Step 5: Solve for x
    x = 41,041,636,793.83/234,342.66
  6. Step 6: Final answer
    x = 175,135.15

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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.