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Finding the Fourth Proportional to 172,376.76, 237,762.99 and 111,839.25

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Solution

The fourth proportional to 172,376.76, 237,762.99 and 111,839.25 is: 154,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.76 : 237,762.99 = 111,839.25 : x
  2. Step 2: Convert to fraction form
    172,376.76/237,762.99 = 111,839.25/x
  3. Step 3: Cross multiply
    172,376.76x = 237,762.99 × 111,839.25
  4. Step 4: Simplify right side
    172,376.76x = 26,591,234,479.36
  5. Step 5: Solve for x
    x = 26,591,234,479.36/172,376.76
  6. Step 6: Final answer
    x = 154,262.29

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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.