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Finding the Fourth Proportional to 373,913.70, 560,761.20 and 133,999.80

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Solution

The fourth proportional to 373,913.70, 560,761.20 and 133,999.80 is: 200,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,913.70 : 560,761.20 = 133,999.80 : x
  2. Step 2: Convert to fraction form
    373,913.70/560,761.20 = 133,999.80/x
  3. Step 3: Cross multiply
    373,913.70x = 560,761.20 × 133,999.80
  4. Step 4: Simplify right side
    373,913.70x = 75,141,888,647.76
  5. Step 5: Solve for x
    x = 75,141,888,647.76/373,913.70
  6. Step 6: Final answer
    x = 200,960.51

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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.