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Finding the Fourth Proportional to 71,568.32, 98,761.29 and 39,735.32

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Solution

The fourth proportional to 71,568.32, 98,761.29 and 39,735.32 is: 54,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.32 : 98,761.29 = 39,735.32 : x
  2. Step 2: Convert to fraction form
    71,568.32/98,761.29 = 39,735.32/x
  3. Step 3: Cross multiply
    71,568.32x = 98,761.29 × 39,735.32
  4. Step 4: Simplify right side
    71,568.32x = 3,924,311,461.76
  5. Step 5: Solve for x
    x = 3,924,311,461.76/71,568.32
  6. Step 6: Final answer
    x = 54,833.08

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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.