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Finding the Fourth Proportional to 56,892.48, 85,348.73 and 19,443.75

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Solution

The fourth proportional to 56,892.48, 85,348.73 and 19,443.75 is: 29,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,892.48 : 85,348.73 = 19,443.75 : x
  2. Step 2: Convert to fraction form
    56,892.48/85,348.73 = 19,443.75/x
  3. Step 3: Cross multiply
    56,892.48x = 85,348.73 × 19,443.75
  4. Step 4: Simplify right side
    56,892.48x = 1,659,498,844.98
  5. Step 5: Solve for x
    x = 1,659,498,844.98/56,892.48
  6. Step 6: Final answer
    x = 29,169.04

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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.