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Finding the Fourth Proportional to 124,589.87, 186,693.44 and 84,556.83

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Solution

The fourth proportional to 124,589.87, 186,693.44 and 84,556.83 is: 126,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,589.87 : 186,693.44 = 84,556.83 : x
  2. Step 2: Convert to fraction form
    124,589.87/186,693.44 = 84,556.83/x
  3. Step 3: Cross multiply
    124,589.87x = 186,693.44 × 84,556.83
  4. Step 4: Simplify right side
    124,589.87x = 15,786,205,468.20
  5. Step 5: Solve for x
    x = 15,786,205,468.20/124,589.87
  6. Step 6: Final answer
    x = 126,705.37

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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.