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Finding the Fourth Proportional to 56,227.52, 84,355.12 and 39,619.99

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Solution

The fourth proportional to 56,227.52, 84,355.12 and 39,619.99 is: 59,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,227.52 : 84,355.12 = 39,619.99 : x
  2. Step 2: Convert to fraction form
    56,227.52/84,355.12 = 39,619.99/x
  3. Step 3: Cross multiply
    56,227.52x = 84,355.12 × 39,619.99
  4. Step 4: Simplify right side
    56,227.52x = 3,342,148,691.32
  5. Step 5: Solve for x
    x = 3,342,148,691.32/56,227.52
  6. Step 6: Final answer
    x = 59,439.73

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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.