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Finding the Fourth Proportional to 225,544.58, 338,185.68 and 85,314.14

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Solution

The fourth proportional to 225,544.58, 338,185.68 and 85,314.14 is: 127,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,544.58 : 338,185.68 = 85,314.14 : x
  2. Step 2: Convert to fraction form
    225,544.58/338,185.68 = 85,314.14/x
  3. Step 3: Cross multiply
    225,544.58x = 338,185.68 × 85,314.14
  4. Step 4: Simplify right side
    225,544.58x = 28,852,020,449.52
  5. Step 5: Solve for x
    x = 28,852,020,449.52/225,544.58
  6. Step 6: Final answer
    x = 127,921.59

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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.