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Finding the Fourth Proportional to 318,229.86, 439,168.48 and 175,000.80

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Solution

The fourth proportional to 318,229.86, 439,168.48 and 175,000.80 is: 241,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,229.86 : 439,168.48 = 175,000.80 : x
  2. Step 2: Convert to fraction form
    318,229.86/439,168.48 = 175,000.80/x
  3. Step 3: Cross multiply
    318,229.86x = 439,168.48 × 175,000.80
  4. Step 4: Simplify right side
    318,229.86x = 76,854,835,334.78
  5. Step 5: Solve for x
    x = 76,854,835,334.78/318,229.86
  6. Step 6: Final answer
    x = 241,507.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.