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Finding the Fourth Proportional to 125,687.22, 173,449.54 and 69,099

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Solution

The fourth proportional to 125,687.22, 173,449.54 and 69,099 is: 95,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,687.22 : 173,449.54 = 69,099 : x
  2. Step 2: Convert to fraction form
    125,687.22/173,449.54 = 69,099/x
  3. Step 3: Cross multiply
    125,687.22x = 173,449.54 × 69,099
  4. Step 4: Simplify right side
    125,687.22x = 11,985,189,764.46
  5. Step 5: Solve for x
    x = 11,985,189,764.46/125,687.22
  6. Step 6: Final answer
    x = 95,357.27

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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.