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Finding the Fourth Proportional to 63,805.55, 95,722.19 and 19,431.17

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Solution

The fourth proportional to 63,805.55, 95,722.19 and 19,431.17 is: 29,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,805.55 : 95,722.19 = 19,431.17 : x
  2. Step 2: Convert to fraction form
    63,805.55/95,722.19 = 19,431.17/x
  3. Step 3: Cross multiply
    63,805.55x = 95,722.19 × 19,431.17
  4. Step 4: Simplify right side
    63,805.55x = 1,859,993,643.76
  5. Step 5: Solve for x
    x = 1,859,993,643.76/63,805.55
  6. Step 6: Final answer
    x = 29,150.97

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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.