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Finding the Fourth Proportional to 71,549.67, 98,747.64 and 43,255.29

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Solution

The fourth proportional to 71,549.67, 98,747.64 and 43,255.29 is: 59,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,549.67 : 98,747.64 = 43,255.29 : x
  2. Step 2: Convert to fraction form
    71,549.67/98,747.64 = 43,255.29/x
  3. Step 3: Cross multiply
    71,549.67x = 98,747.64 × 43,255.29
  4. Step 4: Simplify right side
    71,549.67x = 4,271,357,805.02
  5. Step 5: Solve for x
    x = 4,271,357,805.02/71,549.67
  6. Step 6: Final answer
    x = 59,697.80

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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.