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Finding the Fourth Proportional to 65,959.92, 98,961.75 and 43,860.29

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Solution

The fourth proportional to 65,959.92, 98,961.75 and 43,860.29 is: 65,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,959.92 : 98,961.75 = 43,860.29 : x
  2. Step 2: Convert to fraction form
    65,959.92/98,961.75 = 43,860.29/x
  3. Step 3: Cross multiply
    65,959.92x = 98,961.75 × 43,860.29
  4. Step 4: Simplify right side
    65,959.92x = 4,340,490,559.10
  5. Step 5: Solve for x
    x = 4,340,490,559.10/65,959.92
  6. Step 6: Final answer
    x = 65,804.97

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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.