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Finding the Fourth Proportional to 71,116.58, 106,741.83 and 36,081.38

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Solution

The fourth proportional to 71,116.58, 106,741.83 and 36,081.38 is: 54,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,116.58 : 106,741.83 = 36,081.38 : x
  2. Step 2: Convert to fraction form
    71,116.58/106,741.83 = 36,081.38/x
  3. Step 3: Cross multiply
    71,116.58x = 106,741.83 × 36,081.38
  4. Step 4: Simplify right side
    71,116.58x = 3,851,392,530.13
  5. Step 5: Solve for x
    x = 3,851,392,530.13/71,116.58
  6. Step 6: Final answer
    x = 54,156.04

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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.