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Finding the Fourth Proportional to 361,553.10, 542,326.82 and 108,832.49

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Solution

The fourth proportional to 361,553.10, 542,326.82 and 108,832.49 is: 163,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,553.10 : 542,326.82 = 108,832.49 : x
  2. Step 2: Convert to fraction form
    361,553.10/542,326.82 = 108,832.49/x
  3. Step 3: Cross multiply
    361,553.10x = 542,326.82 × 108,832.49
  4. Step 4: Simplify right side
    361,553.10x = 59,022,779,026.04
  5. Step 5: Solve for x
    x = 59,022,779,026.04/361,553.10
  6. Step 6: Final answer
    x = 163,247.89

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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.