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Finding the Fourth Proportional to 71,568.50, 98,791.04 and 61,456.35

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Solution

The fourth proportional to 71,568.50, 98,791.04 and 61,456.35 is: 84,832.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.50 : 98,791.04 = 61,456.35 : x
  2. Step 2: Convert to fraction form
    71,568.50/98,791.04 = 61,456.35/x
  3. Step 3: Cross multiply
    71,568.50x = 98,791.04 × 61,456.35
  4. Step 4: Simplify right side
    71,568.50x = 6,071,337,255.21
  5. Step 5: Solve for x
    x = 6,071,337,255.21/71,568.50
  6. Step 6: Final answer
    x = 84,832.54

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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.