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Finding the Fourth Proportional to 57,610.70, 86,610.45 and 49,057.10

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Solution

The fourth proportional to 57,610.70, 86,610.45 and 49,057.10 is: 73,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,610.70 : 86,610.45 = 49,057.10 : x
  2. Step 2: Convert to fraction form
    57,610.70/86,610.45 = 49,057.10/x
  3. Step 3: Cross multiply
    57,610.70x = 86,610.45 × 49,057.10
  4. Step 4: Simplify right side
    57,610.70x = 4,248,857,506.70
  5. Step 5: Solve for x
    x = 4,248,857,506.70/57,610.70
  6. Step 6: Final answer
    x = 73,751.19

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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.