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Finding the Fourth Proportional to 86,843.22, 119,845.80 and 48,601.50

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Solution

The fourth proportional to 86,843.22, 119,845.80 and 48,601.50 is: 67,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,843.22 : 119,845.80 = 48,601.50 : x
  2. Step 2: Convert to fraction form
    86,843.22/119,845.80 = 48,601.50/x
  3. Step 3: Cross multiply
    86,843.22x = 119,845.80 × 48,601.50
  4. Step 4: Simplify right side
    86,843.22x = 5,824,685,648.70
  5. Step 5: Solve for x
    x = 5,824,685,648.70/86,843.22
  6. Step 6: Final answer
    x = 67,071.28

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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.