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Finding the Fourth Proportional to 127,757.99, 176,211.60 and 93,755

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Solution

The fourth proportional to 127,757.99, 176,211.60 and 93,755 is: 129,312.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,757.99 : 176,211.60 = 93,755 : x
  2. Step 2: Convert to fraction form
    127,757.99/176,211.60 = 93,755/x
  3. Step 3: Cross multiply
    127,757.99x = 176,211.60 × 93,755
  4. Step 4: Simplify right side
    127,757.99x = 16,520,718,558
  5. Step 5: Solve for x
    x = 16,520,718,558/127,757.99
  6. Step 6: Final answer
    x = 129,312.61

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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.