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Finding the Fourth Proportional to 225,791.28, 338,696.28 and 92,577.60

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Solution

The fourth proportional to 225,791.28, 338,696.28 and 92,577.60 is: 138,870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,791.28 : 338,696.28 = 92,577.60 : x
  2. Step 2: Convert to fraction form
    225,791.28/338,696.28 = 92,577.60/x
  3. Step 3: Cross multiply
    225,791.28x = 338,696.28 × 92,577.60
  4. Step 4: Simplify right side
    225,791.28x = 31,355,688,731.33
  5. Step 5: Solve for x
    x = 31,355,688,731.33/225,791.28
  6. Step 6: Final answer
    x = 138,870.24

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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.