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Finding the Fourth Proportional to 125,614.80, 188,422.20 and 124,302.60

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Solution

The fourth proportional to 125,614.80, 188,422.20 and 124,302.60 is: 186,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,614.80 : 188,422.20 = 124,302.60 : x
  2. Step 2: Convert to fraction form
    125,614.80/188,422.20 = 124,302.60/x
  3. Step 3: Cross multiply
    125,614.80x = 188,422.20 × 124,302.60
  4. Step 4: Simplify right side
    125,614.80x = 23,421,369,357.72
  5. Step 5: Solve for x
    x = 23,421,369,357.72/125,614.80
  6. Step 6: Final answer
    x = 186,453.90

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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.