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Finding the Fourth Proportional to 332,530.71, 498,994.78 and 122,189.91

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Solution

The fourth proportional to 332,530.71, 498,994.78 and 122,189.91 is: 183,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,530.71 : 498,994.78 = 122,189.91 : x
  2. Step 2: Convert to fraction form
    332,530.71/498,994.78 = 122,189.91/x
  3. Step 3: Cross multiply
    332,530.71x = 498,994.78 × 122,189.91
  4. Step 4: Simplify right side
    332,530.71x = 60,972,127,258.67
  5. Step 5: Solve for x
    x = 60,972,127,258.67/332,530.71
  6. Step 6: Final answer
    x = 183,357.88

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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.