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Finding the Fourth Proportional to 332,530.58, 498,994.60 and 122,189.78

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Solution

The fourth proportional to 332,530.58, 498,994.60 and 122,189.78 is: 183,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,530.58 : 498,994.60 = 122,189.78 : x
  2. Step 2: Convert to fraction form
    332,530.58/498,994.60 = 122,189.78/x
  3. Step 3: Cross multiply
    332,530.58x = 498,994.60 × 122,189.78
  4. Step 4: Simplify right side
    332,530.58x = 60,972,040,395.19
  5. Step 5: Solve for x
    x = 60,972,040,395.19/332,530.58
  6. Step 6: Final answer
    x = 183,357.69

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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.