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Finding the Fourth Proportional to 123,480.32, 185,228.48 and 49,608.32

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Solution

The fourth proportional to 123,480.32, 185,228.48 and 49,608.32 is: 74,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,480.32 : 185,228.48 = 49,608.32 : x
  2. Step 2: Convert to fraction form
    123,480.32/185,228.48 = 49,608.32/x
  3. Step 3: Cross multiply
    123,480.32x = 185,228.48 × 49,608.32
  4. Step 4: Simplify right side
    123,480.32x = 9,188,873,708.95
  5. Step 5: Solve for x
    x = 9,188,873,708.95/123,480.32
  6. Step 6: Final answer
    x = 74,415.69

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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.