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Finding the Fourth Proportional to 234,356.78, 323,412.24 and 126,926.80

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Solution

The fourth proportional to 234,356.78, 323,412.24 and 126,926.80 is: 175,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,356.78 : 323,412.24 = 126,926.80 : x
  2. Step 2: Convert to fraction form
    234,356.78/323,412.24 = 126,926.80/x
  3. Step 3: Cross multiply
    234,356.78x = 323,412.24 × 126,926.80
  4. Step 4: Simplify right side
    234,356.78x = 41,049,680,704.03
  5. Step 5: Solve for x
    x = 41,049,680,704.03/234,356.78
  6. Step 6: Final answer
    x = 175,158.92

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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.