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Finding the Fourth Proportional to 117,661.85, 176,454.86 and 38,757.29

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Solution

The fourth proportional to 117,661.85, 176,454.86 and 38,757.29 is: 58,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,661.85 : 176,454.86 = 38,757.29 : x
  2. Step 2: Convert to fraction form
    117,661.85/176,454.86 = 38,757.29/x
  3. Step 3: Cross multiply
    117,661.85x = 176,454.86 × 38,757.29
  4. Step 4: Simplify right side
    117,661.85x = 6,838,911,987.14
  5. Step 5: Solve for x
    x = 6,838,911,987.14/117,661.85
  6. Step 6: Final answer
    x = 58,123.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.