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Finding the Fourth Proportional to 154,949.80, 231,987.30 and 150,575.80

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Solution

The fourth proportional to 154,949.80, 231,987.30 and 150,575.80 is: 225,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,949.80 : 231,987.30 = 150,575.80 : x
  2. Step 2: Convert to fraction form
    154,949.80/231,987.30 = 150,575.80/x
  3. Step 3: Cross multiply
    154,949.80x = 231,987.30 × 150,575.80
  4. Step 4: Simplify right side
    154,949.80x = 34,931,673,287.34
  5. Step 5: Solve for x
    x = 34,931,673,287.34/154,949.80
  6. Step 6: Final answer
    x = 225,438.65

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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.