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Finding the Fourth Proportional to 117,655, 176,691.48 and 108,275.20

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Solution

The fourth proportional to 117,655, 176,691.48 and 108,275.20 is: 162,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,655 : 176,691.48 = 108,275.20 : x
  2. Step 2: Convert to fraction form
    117,655/176,691.48 = 108,275.20/x
  3. Step 3: Cross multiply
    117,655x = 176,691.48 × 108,275.20
  4. Step 4: Simplify right side
    117,655x = 19,131,305,335.30
  5. Step 5: Solve for x
    x = 19,131,305,335.30/117,655
  6. Step 6: Final answer
    x = 162,605.12

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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.