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Finding the Fourth Proportional to 323,686.84, 485,600.36 and 124,007.25

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Solution

The fourth proportional to 323,686.84, 485,600.36 and 124,007.25 is: 186,037.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,686.84 : 485,600.36 = 124,007.25 : x
  2. Step 2: Convert to fraction form
    323,686.84/485,600.36 = 124,007.25/x
  3. Step 3: Cross multiply
    323,686.84x = 485,600.36 × 124,007.25
  4. Step 4: Simplify right side
    323,686.84x = 60,217,965,242.61
  5. Step 5: Solve for x
    x = 60,217,965,242.61/323,686.84
  6. Step 6: Final answer
    x = 186,037.73

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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.