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Finding the Fourth Proportional to 117,805.47, 176,743.04 and 67,921.35

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Solution

The fourth proportional to 117,805.47, 176,743.04 and 67,921.35 is: 101,902.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.47 : 176,743.04 = 67,921.35 : x
  2. Step 2: Convert to fraction form
    117,805.47/176,743.04 = 67,921.35/x
  3. Step 3: Cross multiply
    117,805.47x = 176,743.04 × 67,921.35
  4. Step 4: Simplify right side
    117,805.47x = 12,004,625,540.30
  5. Step 5: Solve for x
    x = 12,004,625,540.30/117,805.47
  6. Step 6: Final answer
    x = 101,902.11

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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.