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Finding the Fourth Proportional to 185,149.90, 255,504.78 and 108,655.32

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Solution

The fourth proportional to 185,149.90, 255,504.78 and 108,655.32 is: 149,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,149.90 : 255,504.78 = 108,655.32 : x
  2. Step 2: Convert to fraction form
    185,149.90/255,504.78 = 108,655.32/x
  3. Step 3: Cross multiply
    185,149.90x = 255,504.78 × 108,655.32
  4. Step 4: Simplify right side
    185,149.90x = 27,761,954,590.57
  5. Step 5: Solve for x
    x = 27,761,954,590.57/185,149.90
  6. Step 6: Final answer
    x = 149,943.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.