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Finding the Fourth Proportional to 125,586.59, 188,405.80 and 41,351.78

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Solution

The fourth proportional to 125,586.59, 188,405.80 and 41,351.78 is: 62,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,586.59 : 188,405.80 = 41,351.78 : x
  2. Step 2: Convert to fraction form
    125,586.59/188,405.80 = 41,351.78/x
  3. Step 3: Cross multiply
    125,586.59x = 188,405.80 × 41,351.78
  4. Step 4: Simplify right side
    125,586.59x = 7,790,915,559.96
  5. Step 5: Solve for x
    x = 7,790,915,559.96/125,586.59
  6. Step 6: Final answer
    x = 62,036.21

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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.