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Finding the Fourth Proportional to 81,744.93, 122,624.48 and 22,580.64

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Solution

The fourth proportional to 81,744.93, 122,624.48 and 22,580.64 is: 33,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.93 : 122,624.48 = 22,580.64 : x
  2. Step 2: Convert to fraction form
    81,744.93/122,624.48 = 22,580.64/x
  3. Step 3: Cross multiply
    81,744.93x = 122,624.48 × 22,580.64
  4. Step 4: Simplify right side
    81,744.93x = 2,768,939,294.52
  5. Step 5: Solve for x
    x = 2,768,939,294.52/81,744.93
  6. Step 6: Final answer
    x = 33,872.92

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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.