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Finding the Fourth Proportional to 225,987.87, 311,862.33 and 124,015.02

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Solution

The fourth proportional to 225,987.87, 311,862.33 and 124,015.02 is: 171,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,987.87 : 311,862.33 = 124,015.02 : x
  2. Step 2: Convert to fraction form
    225,987.87/311,862.33 = 124,015.02/x
  3. Step 3: Cross multiply
    225,987.87x = 311,862.33 × 124,015.02
  4. Step 4: Simplify right side
    225,987.87x = 38,675,613,092.20
  5. Step 5: Solve for x
    x = 38,675,613,092.20/225,987.87
  6. Step 6: Final answer
    x = 171,140.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.