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Finding the Fourth Proportional to 225,671.95, 338,524.64 and 75,911.66

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Solution

The fourth proportional to 225,671.95, 338,524.64 and 75,911.66 is: 113,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,671.95 : 338,524.64 = 75,911.66 : x
  2. Step 2: Convert to fraction form
    225,671.95/338,524.64 = 75,911.66/x
  3. Step 3: Cross multiply
    225,671.95x = 338,524.64 × 75,911.66
  4. Step 4: Simplify right side
    225,671.95x = 25,697,967,373.30
  5. Step 5: Solve for x
    x = 25,697,967,373.30/225,671.95
  6. Step 6: Final answer
    x = 113,873.11

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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.