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Finding the Fourth Proportional to 262,651.68, 393,346.23 and 149,990.82

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Solution

The fourth proportional to 262,651.68, 393,346.23 and 149,990.82 is: 224,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,651.68 : 393,346.23 = 149,990.82 : x
  2. Step 2: Convert to fraction form
    262,651.68/393,346.23 = 149,990.82/x
  3. Step 3: Cross multiply
    262,651.68x = 393,346.23 × 149,990.82
  4. Step 4: Simplify right side
    262,651.68x = 58,998,323,581.61
  5. Step 5: Solve for x
    x = 58,998,323,581.61/262,651.68
  6. Step 6: Final answer
    x = 224,625.72

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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.