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Finding the Fourth Proportional to 86,859, 119,865.46 and 49,132.44

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Solution

The fourth proportional to 86,859, 119,865.46 and 49,132.44 is: 67,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859 : 119,865.46 = 49,132.44 : x
  2. Step 2: Convert to fraction form
    86,859/119,865.46 = 49,132.44/x
  3. Step 3: Cross multiply
    86,859x = 119,865.46 × 49,132.44
  4. Step 4: Simplify right side
    86,859x = 5,889,282,521.52
  5. Step 5: Solve for x
    x = 5,889,282,521.52/86,859
  6. Step 6: Final answer
    x = 67,802.79

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