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Finding the Fourth Proportional to 173,279, 239,125.74 and 93,791

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Solution

The fourth proportional to 173,279, 239,125.74 and 93,791 is: 129,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,279 : 239,125.74 = 93,791 : x
  2. Step 2: Convert to fraction form
    173,279/239,125.74 = 93,791/x
  3. Step 3: Cross multiply
    173,279x = 239,125.74 × 93,791
  4. Step 4: Simplify right side
    173,279x = 22,427,842,280.34
  5. Step 5: Solve for x
    x = 22,427,842,280.34/173,279
  6. Step 6: Final answer
    x = 129,431.97

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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.