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Finding the Fourth Proportional to 71,652.72, 98,891.68 and 51,576.08

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Solution

The fourth proportional to 71,652.72, 98,891.68 and 51,576.08 is: 71,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,652.72 : 98,891.68 = 51,576.08 : x
  2. Step 2: Convert to fraction form
    71,652.72/98,891.68 = 51,576.08/x
  3. Step 3: Cross multiply
    71,652.72x = 98,891.68 × 51,576.08
  4. Step 4: Simplify right side
    71,652.72x = 5,100,445,199.01
  5. Step 5: Solve for x
    x = 5,100,445,199.01/71,652.72
  6. Step 6: Final answer
    x = 71,182.86

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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.