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Finding the Fourth Proportional to 158,689.32, 218,791.98 and 116,174.04

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Solution

The fourth proportional to 158,689.32, 218,791.98 and 116,174.04 is: 160,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,689.32 : 218,791.98 = 116,174.04 : x
  2. Step 2: Convert to fraction form
    158,689.32/218,791.98 = 116,174.04/x
  3. Step 3: Cross multiply
    158,689.32x = 218,791.98 × 116,174.04
  4. Step 4: Simplify right side
    158,689.32x = 25,417,948,236.20
  5. Step 5: Solve for x
    x = 25,417,948,236.20/158,689.32
  6. Step 6: Final answer
    x = 160,174.28

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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.