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Finding the Fourth Proportional to 274,124.80, 410,803.20 and 218,060.80

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Solution

The fourth proportional to 274,124.80, 410,803.20 and 218,060.80 is: 326,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,124.80 : 410,803.20 = 218,060.80 : x
  2. Step 2: Convert to fraction form
    274,124.80/410,803.20 = 218,060.80/x
  3. Step 3: Cross multiply
    274,124.80x = 410,803.20 × 218,060.80
  4. Step 4: Simplify right side
    274,124.80x = 89,580,074,434.56
  5. Step 5: Solve for x
    x = 89,580,074,434.56/274,124.80
  6. Step 6: Final answer
    x = 326,785.74

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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.