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Finding the Fourth Proportional to 86,565.87, 119,194.43 and 73,790.42

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Solution

The fourth proportional to 86,565.87, 119,194.43 and 73,790.42 is: 101,603.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565.87 : 119,194.43 = 73,790.42 : x
  2. Step 2: Convert to fraction form
    86,565.87/119,194.43 = 73,790.42/x
  3. Step 3: Cross multiply
    86,565.87x = 119,194.43 × 73,790.42
  4. Step 4: Simplify right side
    86,565.87x = 8,795,406,086.44
  5. Step 5: Solve for x
    x = 8,795,406,086.44/86,565.87
  6. Step 6: Final answer
    x = 101,603.62

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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.