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Finding the Fourth Proportional to 71,874, 99,187.08 and 41,661.48

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Solution

The fourth proportional to 71,874, 99,187.08 and 41,661.48 is: 57,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,874 : 99,187.08 = 41,661.48 : x
  2. Step 2: Convert to fraction form
    71,874/99,187.08 = 41,661.48/x
  3. Step 3: Cross multiply
    71,874x = 99,187.08 × 41,661.48
  4. Step 4: Simplify right side
    71,874x = 4,132,280,549.68
  5. Step 5: Solve for x
    x = 4,132,280,549.68/71,874
  6. Step 6: Final answer
    x = 57,493.40

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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.