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Finding the Fourth Proportional to 86,694.50, 119,648.15 and 48,971.18

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Solution

The fourth proportional to 86,694.50, 119,648.15 and 48,971.18 is: 67,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.50 : 119,648.15 = 48,971.18 : x
  2. Step 2: Convert to fraction form
    86,694.50/119,648.15 = 48,971.18/x
  3. Step 3: Cross multiply
    86,694.50x = 119,648.15 × 48,971.18
  4. Step 4: Simplify right side
    86,694.50x = 5,859,311,090.32
  5. Step 5: Solve for x
    x = 5,859,311,090.32/86,694.50
  6. Step 6: Final answer
    x = 67,585.73

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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.