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Finding the Fourth Proportional to 195,363.72, 269,655.08 and 114,817.20

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Solution

The fourth proportional to 195,363.72, 269,655.08 and 114,817.20 is: 158,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,363.72 : 269,655.08 = 114,817.20 : x
  2. Step 2: Convert to fraction form
    195,363.72/269,655.08 = 114,817.20/x
  3. Step 3: Cross multiply
    195,363.72x = 269,655.08 × 114,817.20
  4. Step 4: Simplify right side
    195,363.72x = 30,961,041,251.38
  5. Step 5: Solve for x
    x = 30,961,041,251.38/195,363.72
  6. Step 6: Final answer
    x = 158,478.97

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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.