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Finding the Fourth Proportional to 161,202.45, 241,803.68 and 86,552.85

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Solution

The fourth proportional to 161,202.45, 241,803.68 and 86,552.85 is: 129,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,202.45 : 241,803.68 = 86,552.85 : x
  2. Step 2: Convert to fraction form
    161,202.45/241,803.68 = 86,552.85/x
  3. Step 3: Cross multiply
    161,202.45x = 241,803.68 × 86,552.85
  4. Step 4: Simplify right side
    161,202.45x = 20,928,797,211.72
  5. Step 5: Solve for x
    x = 20,928,797,211.72/161,202.45
  6. Step 6: Final answer
    x = 129,829.28

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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.