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Finding the Fourth Proportional to 323,600.95, 485,620.13 and 113,240.71

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Solution

The fourth proportional to 323,600.95, 485,620.13 and 113,240.71 is: 169,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,600.95 : 485,620.13 = 113,240.71 : x
  2. Step 2: Convert to fraction form
    323,600.95/485,620.13 = 113,240.71/x
  3. Step 3: Cross multiply
    323,600.95x = 485,620.13 × 113,240.71
  4. Step 4: Simplify right side
    323,600.95x = 54,991,966,531.24
  5. Step 5: Solve for x
    x = 54,991,966,531.24/323,600.95
  6. Step 6: Final answer
    x = 169,937.59

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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.