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Finding the Fourth Proportional to 113,147.67, 169,791.57 and 65,785.03

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Solution

The fourth proportional to 113,147.67, 169,791.57 and 65,785.03 is: 98,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,147.67 : 169,791.57 = 65,785.03 : x
  2. Step 2: Convert to fraction form
    113,147.67/169,791.57 = 65,785.03/x
  3. Step 3: Cross multiply
    113,147.67x = 169,791.57 × 65,785.03
  4. Step 4: Simplify right side
    113,147.67x = 11,169,743,526.20
  5. Step 5: Solve for x
    x = 11,169,743,526.20/113,147.67
  6. Step 6: Final answer
    x = 98,718.28

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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.