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Finding the Fourth Proportional to 71,125.80, 98,134.02 and 41,317.80

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Solution

The fourth proportional to 71,125.80, 98,134.02 and 41,317.80 is: 57,007.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.80 : 98,134.02 = 41,317.80 : x
  2. Step 2: Convert to fraction form
    71,125.80/98,134.02 = 41,317.80/x
  3. Step 3: Cross multiply
    71,125.80x = 98,134.02 × 41,317.80
  4. Step 4: Simplify right side
    71,125.80x = 4,054,681,811.56
  5. Step 5: Solve for x
    x = 4,054,681,811.56/71,125.80
  6. Step 6: Final answer
    x = 57,007.19

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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.