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Finding the Fourth Proportional to 88,029.88, 121,480.14 and 47,743

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Solution

The fourth proportional to 88,029.88, 121,480.14 and 47,743 is: 65,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,029.88 : 121,480.14 = 47,743 : x
  2. Step 2: Convert to fraction form
    88,029.88/121,480.14 = 47,743/x
  3. Step 3: Cross multiply
    88,029.88x = 121,480.14 × 47,743
  4. Step 4: Simplify right side
    88,029.88x = 5,799,826,324.02
  5. Step 5: Solve for x
    x = 5,799,826,324.02/88,029.88
  6. Step 6: Final answer
    x = 65,884.75

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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.