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Finding the Fourth Proportional to 332,685.20, 499,027.80 and 111,069.20

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Solution

The fourth proportional to 332,685.20, 499,027.80 and 111,069.20 is: 166,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,685.20 : 499,027.80 = 111,069.20 : x
  2. Step 2: Convert to fraction form
    332,685.20/499,027.80 = 111,069.20/x
  3. Step 3: Cross multiply
    332,685.20x = 499,027.80 × 111,069.20
  4. Step 4: Simplify right side
    332,685.20x = 55,426,618,523.76
  5. Step 5: Solve for x
    x = 55,426,618,523.76/332,685.20
  6. Step 6: Final answer
    x = 166,603.80

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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.