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Finding the Fourth Proportional to 86,596.30, 119,530.11 and 50,800.78

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Solution

The fourth proportional to 86,596.30, 119,530.11 and 50,800.78 is: 70,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,596.30 : 119,530.11 = 50,800.78 : x
  2. Step 2: Convert to fraction form
    86,596.30/119,530.11 = 50,800.78/x
  3. Step 3: Cross multiply
    86,596.30x = 119,530.11 × 50,800.78
  4. Step 4: Simplify right side
    86,596.30x = 6,072,222,821.49
  5. Step 5: Solve for x
    x = 6,072,222,821.49/86,596.30
  6. Step 6: Final answer
    x = 70,121.04

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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.