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Finding the Fourth Proportional to 161,685.69, 242,469.41 and 61,796.49

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Solution

The fourth proportional to 161,685.69, 242,469.41 and 61,796.49 is: 92,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,685.69 : 242,469.41 = 61,796.49 : x
  2. Step 2: Convert to fraction form
    161,685.69/242,469.41 = 61,796.49/x
  3. Step 3: Cross multiply
    161,685.69x = 242,469.41 × 61,796.49
  4. Step 4: Simplify right side
    161,685.69x = 14,983,758,161.39
  5. Step 5: Solve for x
    x = 14,983,758,161.39/161,685.69
  6. Step 6: Final answer
    x = 92,672.14

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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.