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Finding the Fourth Proportional to 125,637.75, 173,380.10 and 69,049.13

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Solution

The fourth proportional to 125,637.75, 173,380.10 and 69,049.13 is: 95,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.75 : 173,380.10 = 69,049.13 : x
  2. Step 2: Convert to fraction form
    125,637.75/173,380.10 = 69,049.13/x
  3. Step 3: Cross multiply
    125,637.75x = 173,380.10 × 69,049.13
  4. Step 4: Simplify right side
    125,637.75x = 11,971,743,852.17
  5. Step 5: Solve for x
    x = 11,971,743,852.17/125,637.75
  6. Step 6: Final answer
    x = 95,287.79

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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.