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Finding the Fourth Proportional to 124,087.80, 185,912.10 and 119,976.60

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Solution

The fourth proportional to 124,087.80, 185,912.10 and 119,976.60 is: 179,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,087.80 : 185,912.10 = 119,976.60 : x
  2. Step 2: Convert to fraction form
    124,087.80/185,912.10 = 119,976.60/x
  3. Step 3: Cross multiply
    124,087.80x = 185,912.10 × 119,976.60
  4. Step 4: Simplify right side
    124,087.80x = 22,305,101,656.86
  5. Step 5: Solve for x
    x = 22,305,101,656.86/124,087.80
  6. Step 6: Final answer
    x = 179,752.58

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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.