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Finding the Fourth Proportional to 125,590.14, 188,393.31 and 55,469.25

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Solution

The fourth proportional to 125,590.14, 188,393.31 and 55,469.25 is: 83,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,590.14 : 188,393.31 = 55,469.25 : x
  2. Step 2: Convert to fraction form
    125,590.14/188,393.31 = 55,469.25/x
  3. Step 3: Cross multiply
    125,590.14x = 188,393.31 × 55,469.25
  4. Step 4: Simplify right side
    125,590.14x = 10,450,035,610.72
  5. Step 5: Solve for x
    x = 10,450,035,610.72/125,590.14
  6. Step 6: Final answer
    x = 83,207.45

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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.