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Finding the Fourth Proportional to 57,753.18, 86,664.33 and 53,053.02

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Solution

The fourth proportional to 57,753.18, 86,664.33 and 53,053.02 is: 79,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,753.18 : 86,664.33 = 53,053.02 : x
  2. Step 2: Convert to fraction form
    57,753.18/86,664.33 = 53,053.02/x
  3. Step 3: Cross multiply
    57,753.18x = 86,664.33 × 53,053.02
  4. Step 4: Simplify right side
    57,753.18x = 4,597,804,432.78
  5. Step 5: Solve for x
    x = 4,597,804,432.78/57,753.18
  6. Step 6: Final answer
    x = 79,611.28

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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.