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Finding the Fourth Proportional to 225,856.68, 338,895.18 and 92,776.92

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Solution

The fourth proportional to 225,856.68, 338,895.18 and 92,776.92 is: 139,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,856.68 : 338,895.18 = 92,776.92 : x
  2. Step 2: Convert to fraction form
    225,856.68/338,895.18 = 92,776.92/x
  3. Step 3: Cross multiply
    225,856.68x = 338,895.18 × 92,776.92
  4. Step 4: Simplify right side
    225,856.68x = 31,441,651,003.25
  5. Step 5: Solve for x
    x = 31,441,651,003.25/225,856.68
  6. Step 6: Final answer
    x = 139,210.63

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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.