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Finding the Fourth Proportional to 234,151.52, 323,129.06 and 126,721.56

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Solution

The fourth proportional to 234,151.52, 323,129.06 and 126,721.56 is: 174,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,151.52 : 323,129.06 = 126,721.56 : x
  2. Step 2: Convert to fraction form
    234,151.52/323,129.06 = 126,721.56/x
  3. Step 3: Cross multiply
    234,151.52x = 323,129.06 × 126,721.56
  4. Step 4: Simplify right side
    234,151.52x = 40,947,417,930.93
  5. Step 5: Solve for x
    x = 40,947,417,930.93/234,151.52
  6. Step 6: Final answer
    x = 174,875.73

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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.