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Finding the Fourth Proportional to 262,811.70, 394,217.55 and 96,578.10

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Solution

The fourth proportional to 262,811.70, 394,217.55 and 96,578.10 is: 144,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,811.70 : 394,217.55 = 96,578.10 : x
  2. Step 2: Convert to fraction form
    262,811.70/394,217.55 = 96,578.10/x
  3. Step 3: Cross multiply
    262,811.70x = 394,217.55 × 96,578.10
  4. Step 4: Simplify right side
    262,811.70x = 38,072,781,965.66
  5. Step 5: Solve for x
    x = 38,072,781,965.66/262,811.70
  6. Step 6: Final answer
    x = 144,867.15

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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.