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Finding the Fourth Proportional to 234,148.77, 323,124.17 and 126,718.65

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Solution

The fourth proportional to 234,148.77, 323,124.17 and 126,718.65 is: 174,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,148.77 : 323,124.17 = 126,718.65 : x
  2. Step 2: Convert to fraction form
    234,148.77/323,124.17 = 126,718.65/x
  3. Step 3: Cross multiply
    234,148.77x = 323,124.17 × 126,718.65
  4. Step 4: Simplify right side
    234,148.77x = 40,945,857,971.18
  5. Step 5: Solve for x
    x = 40,945,857,971.18/234,148.77
  6. Step 6: Final answer
    x = 174,871.12

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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.