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Finding the Fourth Proportional to 125,991.52, 173,868.26 and 69,404.08

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Solution

The fourth proportional to 125,991.52, 173,868.26 and 69,404.08 is: 95,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,991.52 : 173,868.26 = 69,404.08 : x
  2. Step 2: Convert to fraction form
    125,991.52/173,868.26 = 69,404.08/x
  3. Step 3: Cross multiply
    125,991.52x = 173,868.26 × 69,404.08
  4. Step 4: Simplify right side
    125,991.52x = 12,067,166,626.50
  5. Step 5: Solve for x
    x = 12,067,166,626.50/125,991.52
  6. Step 6: Final answer
    x = 95,777.61

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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.