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Finding the Fourth Proportional to 125,387.01, 188,079.89 and 44,394.12

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Solution

The fourth proportional to 125,387.01, 188,079.89 and 44,394.12 is: 66,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,387.01 : 188,079.89 = 44,394.12 : x
  2. Step 2: Convert to fraction form
    125,387.01/188,079.89 = 44,394.12/x
  3. Step 3: Cross multiply
    125,387.01x = 188,079.89 × 44,394.12
  4. Step 4: Simplify right side
    125,387.01x = 8,349,640,984.28
  5. Step 5: Solve for x
    x = 8,349,640,984.28/125,387.01
  6. Step 6: Final answer
    x = 66,590.96

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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.