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Finding the Fourth Proportional to 125,882.40, 188,851.40 and 41,668.80

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Solution

The fourth proportional to 125,882.40, 188,851.40 and 41,668.80 is: 62,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,882.40 : 188,851.40 = 41,668.80 : x
  2. Step 2: Convert to fraction form
    125,882.40/188,851.40 = 41,668.80/x
  3. Step 3: Cross multiply
    125,882.40x = 188,851.40 × 41,668.80
  4. Step 4: Simplify right side
    125,882.40x = 7,869,211,216.32
  5. Step 5: Solve for x
    x = 7,869,211,216.32/125,882.40
  6. Step 6: Final answer
    x = 62,512.40

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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.