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Finding the Fourth Proportional to 78,251.50, 107,992.44 and 44,260.02

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Solution

The fourth proportional to 78,251.50, 107,992.44 and 44,260.02 is: 61,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,251.50 : 107,992.44 = 44,260.02 : x
  2. Step 2: Convert to fraction form
    78,251.50/107,992.44 = 44,260.02/x
  3. Step 3: Cross multiply
    78,251.50x = 107,992.44 × 44,260.02
  4. Step 4: Simplify right side
    78,251.50x = 4,779,747,554.25
  5. Step 5: Solve for x
    x = 4,779,747,554.25/78,251.50
  6. Step 6: Final answer
    x = 61,081.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.