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Finding the Fourth Proportional to 57,869.92, 86,663.31 and 52,260.26

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Solution

The fourth proportional to 57,869.92, 86,663.31 and 52,260.26 is: 78,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.92 : 86,663.31 = 52,260.26 : x
  2. Step 2: Convert to fraction form
    57,869.92/86,663.31 = 52,260.26/x
  3. Step 3: Cross multiply
    57,869.92x = 86,663.31 × 52,260.26
  4. Step 4: Simplify right side
    57,869.92x = 4,529,047,113.06
  5. Step 5: Solve for x
    x = 4,529,047,113.06/57,869.92
  6. Step 6: Final answer
    x = 78,262.54

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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.