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Finding the Fourth Proportional to 86,808.60, 119,795.22 and 49,084.20

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Solution

The fourth proportional to 86,808.60, 119,795.22 and 49,084.20 is: 67,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,808.60 : 119,795.22 = 49,084.20 : x
  2. Step 2: Convert to fraction form
    86,808.60/119,795.22 = 49,084.20/x
  3. Step 3: Cross multiply
    86,808.60x = 119,795.22 × 49,084.20
  4. Step 4: Simplify right side
    86,808.60x = 5,880,052,537.52
  5. Step 5: Solve for x
    x = 5,880,052,537.52/86,808.60
  6. Step 6: Final answer
    x = 67,735.83

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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.