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Finding the Fourth Proportional to 59,231.80, 88,896.30 and 57,287.80

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Solution

The fourth proportional to 59,231.80, 88,896.30 and 57,287.80 is: 85,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,231.80 : 88,896.30 = 57,287.80 : x
  2. Step 2: Convert to fraction form
    59,231.80/88,896.30 = 57,287.80/x
  3. Step 3: Cross multiply
    59,231.80x = 88,896.30 × 57,287.80
  4. Step 4: Simplify right side
    59,231.80x = 5,092,673,455.14
  5. Step 5: Solve for x
    x = 5,092,673,455.14/59,231.80
  6. Step 6: Final answer
    x = 85,978.70

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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.