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Finding the Fourth Proportional to 117,672.75, 176,586.89 and 55,348.11

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Solution

The fourth proportional to 117,672.75, 176,586.89 and 55,348.11 is: 83,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,672.75 : 176,586.89 = 55,348.11 : x
  2. Step 2: Convert to fraction form
    117,672.75/176,586.89 = 55,348.11/x
  3. Step 3: Cross multiply
    117,672.75x = 176,586.89 × 55,348.11
  4. Step 4: Simplify right side
    117,672.75x = 9,773,750,335.54
  5. Step 5: Solve for x
    x = 9,773,750,335.54/117,672.75
  6. Step 6: Final answer
    x = 83,058.74

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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.