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Finding the Fourth Proportional to 240,463.15, 331,842.43 and 149,855.74

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Solution

The fourth proportional to 240,463.15, 331,842.43 and 149,855.74 is: 206,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,463.15 : 331,842.43 = 149,855.74 : x
  2. Step 2: Convert to fraction form
    240,463.15/331,842.43 = 149,855.74/x
  3. Step 3: Cross multiply
    240,463.15x = 331,842.43 × 149,855.74
  4. Step 4: Simplify right side
    240,463.15x = 49,728,492,911.05
  5. Step 5: Solve for x
    x = 49,728,492,911.05/240,463.15
  6. Step 6: Final answer
    x = 206,802.97

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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.