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Finding the Fourth Proportional to 65,449.67, 98,167.19 and 18,068.31

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Solution

The fourth proportional to 65,449.67, 98,167.19 and 18,068.31 is: 27,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,449.67 : 98,167.19 = 18,068.31 : x
  2. Step 2: Convert to fraction form
    65,449.67/98,167.19 = 18,068.31/x
  3. Step 3: Cross multiply
    65,449.67x = 98,167.19 × 18,068.31
  4. Step 4: Simplify right side
    65,449.67x = 1,773,715,130.41
  5. Step 5: Solve for x
    x = 1,773,715,130.41/65,449.67
  6. Step 6: Final answer
    x = 27,100.45

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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.