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Finding the Fourth Proportional to 84,157.68, 126,145.98 and 41,954.52

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Solution

The fourth proportional to 84,157.68, 126,145.98 and 41,954.52 is: 62,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,157.68 : 126,145.98 = 41,954.52 : x
  2. Step 2: Convert to fraction form
    84,157.68/126,145.98 = 41,954.52/x
  3. Step 3: Cross multiply
    84,157.68x = 126,145.98 × 41,954.52
  4. Step 4: Simplify right side
    84,157.68x = 5,292,394,040.83
  5. Step 5: Solve for x
    x = 5,292,394,040.83/84,157.68
  6. Step 6: Final answer
    x = 62,886.64

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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.