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Finding the Fourth Proportional to 86,537.30, 129,818.10 and 27,366.80

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Solution

The fourth proportional to 86,537.30, 129,818.10 and 27,366.80 is: 41,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,537.30 : 129,818.10 = 27,366.80 : x
  2. Step 2: Convert to fraction form
    86,537.30/129,818.10 = 27,366.80/x
  3. Step 3: Cross multiply
    86,537.30x = 129,818.10 × 27,366.80
  4. Step 4: Simplify right side
    86,537.30x = 3,552,705,979.08
  5. Step 5: Solve for x
    x = 3,552,705,979.08/86,537.30
  6. Step 6: Final answer
    x = 41,054.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.