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Finding the Fourth Proportional to 100,462.90, 150,521.55 and 47,758.90

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Solution

The fourth proportional to 100,462.90, 150,521.55 and 47,758.90 is: 71,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,462.90 : 150,521.55 = 47,758.90 : x
  2. Step 2: Convert to fraction form
    100,462.90/150,521.55 = 47,758.90/x
  3. Step 3: Cross multiply
    100,462.90x = 150,521.55 × 47,758.90
  4. Step 4: Simplify right side
    100,462.90x = 7,188,743,654.30
  5. Step 5: Solve for x
    x = 7,188,743,654.30/100,462.90
  6. Step 6: Final answer
    x = 71,556.20

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1.5x scale

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.