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Finding the Fourth Proportional to 65,791.55, 98,515.55 and 43,231.29

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Solution

The fourth proportional to 65,791.55, 98,515.55 and 43,231.29 is: 64,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,791.55 : 98,515.55 = 43,231.29 : x
  2. Step 2: Convert to fraction form
    65,791.55/98,515.55 = 43,231.29/x
  3. Step 3: Cross multiply
    65,791.55x = 98,515.55 × 43,231.29
  4. Step 4: Simplify right side
    65,791.55x = 4,258,954,095.40
  5. Step 5: Solve for x
    x = 4,258,954,095.40/65,791.55
  6. Step 6: Final answer
    x = 64,734.06

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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.