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Finding the Fourth Proportional to 399,350.98, 599,315.50 and 156,227.92

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Solution

The fourth proportional to 399,350.98, 599,315.50 and 156,227.92 is: 234,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,350.98 : 599,315.50 = 156,227.92 : x
  2. Step 2: Convert to fraction form
    399,350.98/599,315.50 = 156,227.92/x
  3. Step 3: Cross multiply
    399,350.98x = 599,315.50 × 156,227.92
  4. Step 4: Simplify right side
    399,350.98x = 93,629,813,988.76
  5. Step 5: Solve for x
    x = 93,629,813,988.76/399,350.98
  6. Step 6: Final answer
    x = 234,454.95

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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.