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Finding the Fourth Proportional to 239,421.85, 359,132.78 and 200,055.85

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Solution

The fourth proportional to 239,421.85, 359,132.78 and 200,055.85 is: 300,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,421.85 : 359,132.78 = 200,055.85 : x
  2. Step 2: Convert to fraction form
    239,421.85/359,132.78 = 200,055.85/x
  3. Step 3: Cross multiply
    239,421.85x = 359,132.78 × 200,055.85
  4. Step 4: Simplify right side
    239,421.85x = 71,846,612,565.48
  5. Step 5: Solve for x
    x = 71,846,612,565.48/239,421.85
  6. Step 6: Final answer
    x = 300,083.78

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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.