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Finding the Fourth Proportional to 86,741.76, 130,189.44 and 44,651.52

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Solution

The fourth proportional to 86,741.76, 130,189.44 and 44,651.52 is: 67,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,741.76 : 130,189.44 = 44,651.52 : x
  2. Step 2: Convert to fraction form
    86,741.76/130,189.44 = 44,651.52/x
  3. Step 3: Cross multiply
    86,741.76x = 130,189.44 × 44,651.52
  4. Step 4: Simplify right side
    86,741.76x = 5,813,156,383.95
  5. Step 5: Solve for x
    x = 5,813,156,383.95/86,741.76
  6. Step 6: Final answer
    x = 67,016.81

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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.