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Finding the Fourth Proportional to 136,474.20, 204,711.30 and 124,008.30

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Solution

The fourth proportional to 136,474.20, 204,711.30 and 124,008.30 is: 186,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,474.20 : 204,711.30 = 124,008.30 : x
  2. Step 2: Convert to fraction form
    136,474.20/204,711.30 = 124,008.30/x
  3. Step 3: Cross multiply
    136,474.20x = 204,711.30 × 124,008.30
  4. Step 4: Simplify right side
    136,474.20x = 25,385,900,303.79
  5. Step 5: Solve for x
    x = 25,385,900,303.79/136,474.20
  6. Step 6: Final answer
    x = 186,012.45

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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.