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Finding the Fourth Proportional to 161,754.59, 242,675.51 and 49,431.66

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Solution

The fourth proportional to 161,754.59, 242,675.51 and 49,431.66 is: 74,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,754.59 : 242,675.51 = 49,431.66 : x
  2. Step 2: Convert to fraction form
    161,754.59/242,675.51 = 49,431.66/x
  3. Step 3: Cross multiply
    161,754.59x = 242,675.51 × 49,431.66
  4. Step 4: Simplify right side
    161,754.59x = 11,995,853,053.49
  5. Step 5: Solve for x
    x = 11,995,853,053.49/161,754.59
  6. Step 6: Final answer
    x = 74,160.82

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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.