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Finding the Fourth Proportional to 323,591.53, 485,401.86 and 123,860.11

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Solution

The fourth proportional to 323,591.53, 485,401.86 and 123,860.11 is: 185,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,591.53 : 485,401.86 = 123,860.11 : x
  2. Step 2: Convert to fraction form
    323,591.53/485,401.86 = 123,860.11/x
  3. Step 3: Cross multiply
    323,591.53x = 485,401.86 × 123,860.11
  4. Step 4: Simplify right side
    323,591.53x = 60,121,927,773.80
  5. Step 5: Solve for x
    x = 60,121,927,773.80/323,591.53
  6. Step 6: Final answer
    x = 185,795.74

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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.