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Finding the Fourth Proportional to 125,806.48, 173,610.46 and 69,218.80

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Solution

The fourth proportional to 125,806.48, 173,610.46 and 69,218.80 is: 95,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,806.48 : 173,610.46 = 69,218.80 : x
  2. Step 2: Convert to fraction form
    125,806.48/173,610.46 = 69,218.80/x
  3. Step 3: Cross multiply
    125,806.48x = 173,610.46 × 69,218.80
  4. Step 4: Simplify right side
    125,806.48x = 12,017,107,708.65
  5. Step 5: Solve for x
    x = 12,017,107,708.65/125,806.48
  6. Step 6: Final answer
    x = 95,520.58

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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.