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Finding the Fourth Proportional to 123,604.80, 185,464.80 and 92,500.80

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Solution

The fourth proportional to 123,604.80, 185,464.80 and 92,500.80 is: 138,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,604.80 : 185,464.80 = 92,500.80 : x
  2. Step 2: Convert to fraction form
    123,604.80/185,464.80 = 92,500.80/x
  3. Step 3: Cross multiply
    123,604.80x = 185,464.80 × 92,500.80
  4. Step 4: Simplify right side
    123,604.80x = 17,155,642,371.84
  5. Step 5: Solve for x
    x = 17,155,642,371.84/123,604.80
  6. Step 6: Final answer
    x = 138,794.31

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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.