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Finding the Fourth Proportional to 423,691.58, 635,559.24 and 108,151.22

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Solution

The fourth proportional to 423,691.58, 635,559.24 and 108,151.22 is: 162,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,691.58 : 635,559.24 = 108,151.22 : x
  2. Step 2: Convert to fraction form
    423,691.58/635,559.24 = 108,151.22/x
  3. Step 3: Cross multiply
    423,691.58x = 635,559.24 × 108,151.22
  4. Step 4: Simplify right side
    423,691.58x = 68,736,507,188.27
  5. Step 5: Solve for x
    x = 68,736,507,188.27/423,691.58
  6. Step 6: Final answer
    x = 162,232.41

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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.