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Finding the Fourth Proportional to 125,301.67, 188,112.88 and 107,645.29

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Solution

The fourth proportional to 125,301.67, 188,112.88 and 107,645.29 is: 161,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,301.67 : 188,112.88 = 107,645.29 : x
  2. Step 2: Convert to fraction form
    125,301.67/188,112.88 = 107,645.29/x
  3. Step 3: Cross multiply
    125,301.67x = 188,112.88 × 107,645.29
  4. Step 4: Simplify right side
    125,301.67x = 20,249,465,520.34
  5. Step 5: Solve for x
    x = 20,249,465,520.34/125,301.67
  6. Step 6: Final answer
    x = 161,605.71

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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.