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Finding the Fourth Proportional to 240,995.84, 361,420.89 and 72,471.43

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Solution

The fourth proportional to 240,995.84, 361,420.89 and 72,471.43 is: 108,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,995.84 : 361,420.89 = 72,471.43 : x
  2. Step 2: Convert to fraction form
    240,995.84/361,420.89 = 72,471.43/x
  3. Step 3: Cross multiply
    240,995.84x = 361,420.89 × 72,471.43
  4. Step 4: Simplify right side
    240,995.84x = 26,192,690,538.15
  5. Step 5: Solve for x
    x = 26,192,690,538.15/240,995.84
  6. Step 6: Final answer
    x = 108,685.24

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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.