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Finding the Fourth Proportional to 206,661.67, 310,021.67 and 73,502.53

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Solution

The fourth proportional to 206,661.67, 310,021.67 and 73,502.53 is: 110,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,661.67 : 310,021.67 = 73,502.53 : x
  2. Step 2: Convert to fraction form
    206,661.67/310,021.67 = 73,502.53/x
  3. Step 3: Cross multiply
    206,661.67x = 310,021.67 × 73,502.53
  4. Step 4: Simplify right side
    206,661.67x = 22,787,377,099.83
  5. Step 5: Solve for x
    x = 22,787,377,099.83/206,661.67
  6. Step 6: Final answer
    x = 110,264.17

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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.