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Finding the Fourth Proportional to 161,856.01, 242,791.31 and 117,270.37

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Solution

The fourth proportional to 161,856.01, 242,791.31 and 117,270.37 is: 175,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,856.01 : 242,791.31 = 117,270.37 : x
  2. Step 2: Convert to fraction form
    161,856.01/242,791.31 = 117,270.37/x
  3. Step 3: Cross multiply
    161,856.01x = 242,791.31 × 117,270.37
  4. Step 4: Simplify right side
    161,856.01x = 28,472,226,756.48
  5. Step 5: Solve for x
    x = 28,472,226,756.48/161,856.01
  6. Step 6: Final answer
    x = 175,910.84

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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.