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Finding the Fourth Proportional to 86,508.66, 119,349.63 and 58,169.46

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Solution

The fourth proportional to 86,508.66, 119,349.63 and 58,169.46 is: 80,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508.66 : 119,349.63 = 58,169.46 : x
  2. Step 2: Convert to fraction form
    86,508.66/119,349.63 = 58,169.46/x
  3. Step 3: Cross multiply
    86,508.66x = 119,349.63 × 58,169.46
  4. Step 4: Simplify right side
    86,508.66x = 6,942,503,528.30
  5. Step 5: Solve for x
    x = 6,942,503,528.30/86,508.66
  6. Step 6: Final answer
    x = 80,252.12

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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.