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Finding the Fourth Proportional to 161,202.20, 241,803.30 and 86,552.60

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Solution

The fourth proportional to 161,202.20, 241,803.30 and 86,552.60 is: 129,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,202.20 : 241,803.30 = 86,552.60 : x
  2. Step 2: Convert to fraction form
    161,202.20/241,803.30 = 86,552.60/x
  3. Step 3: Cross multiply
    161,202.20x = 241,803.30 × 86,552.60
  4. Step 4: Simplify right side
    161,202.20x = 20,928,704,303.58
  5. Step 5: Solve for x
    x = 20,928,704,303.58/161,202.20
  6. Step 6: Final answer
    x = 129,828.90

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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.