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Finding the Fourth Proportional to 173,851.20, 260,949.60 and 85,204.80

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Solution

The fourth proportional to 173,851.20, 260,949.60 and 85,204.80 is: 127,891.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,851.20 : 260,949.60 = 85,204.80 : x
  2. Step 2: Convert to fraction form
    173,851.20/260,949.60 = 85,204.80/x
  3. Step 3: Cross multiply
    173,851.20x = 260,949.60 × 85,204.80
  4. Step 4: Simplify right side
    173,851.20x = 22,234,158,478.08
  5. Step 5: Solve for x
    x = 22,234,158,478.08/173,851.20
  6. Step 6: Final answer
    x = 127,891.89

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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.