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Finding the Fourth Proportional to 367,761.75, 551,642.66 and 118,443.75

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Solution

The fourth proportional to 367,761.75, 551,642.66 and 118,443.75 is: 177,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,761.75 : 551,642.66 = 118,443.75 : x
  2. Step 2: Convert to fraction form
    367,761.75/551,642.66 = 118,443.75/x
  3. Step 3: Cross multiply
    367,761.75x = 551,642.66 × 118,443.75
  4. Step 4: Simplify right side
    367,761.75x = 65,338,624,718.16
  5. Step 5: Solve for x
    x = 65,338,624,718.16/367,761.75
  6. Step 6: Final answer
    x = 177,665.63

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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.