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Finding the Fourth Proportional to 124,162.43, 171,344.91 and 67,574.39

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Solution

The fourth proportional to 124,162.43, 171,344.91 and 67,574.39 is: 93,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,162.43 : 171,344.91 = 67,574.39 : x
  2. Step 2: Convert to fraction form
    124,162.43/171,344.91 = 67,574.39/x
  3. Step 3: Cross multiply
    124,162.43x = 171,344.91 × 67,574.39
  4. Step 4: Simplify right side
    124,162.43x = 11,578,526,916.13
  5. Step 5: Solve for x
    x = 11,578,526,916.13/124,162.43
  6. Step 6: Final answer
    x = 93,253.07

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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.