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Finding the Fourth Proportional to 319,176.65, 440,463.66 and 175,939.09

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Solution

The fourth proportional to 319,176.65, 440,463.66 and 175,939.09 is: 242,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,176.65 : 440,463.66 = 175,939.09 : x
  2. Step 2: Convert to fraction form
    319,176.65/440,463.66 = 175,939.09/x
  3. Step 3: Cross multiply
    319,176.65x = 440,463.66 × 175,939.09
  4. Step 4: Simplify right side
    319,176.65x = 77,494,773,757.54
  5. Step 5: Solve for x
    x = 77,494,773,757.54/319,176.65
  6. Step 6: Final answer
    x = 242,795.87

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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.