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Finding the Fourth Proportional to 172,861.75, 238,549.22 and 93,373.75

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Solution

The fourth proportional to 172,861.75, 238,549.22 and 93,373.75 is: 128,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,861.75 : 238,549.22 = 93,373.75 : x
  2. Step 2: Convert to fraction form
    172,861.75/238,549.22 = 93,373.75/x
  3. Step 3: Cross multiply
    172,861.75x = 238,549.22 × 93,373.75
  4. Step 4: Simplify right side
    172,861.75x = 22,274,234,764.11
  5. Step 5: Solve for x
    x = 22,274,234,764.11/172,861.75
  6. Step 6: Final answer
    x = 128,855.78

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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.