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Finding the Fourth Proportional to 559,519.80, 839,190.60 and 185,542.80

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Solution

The fourth proportional to 559,519.80, 839,190.60 and 185,542.80 is: 278,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,519.80 : 839,190.60 = 185,542.80 : x
  2. Step 2: Convert to fraction form
    559,519.80/839,190.60 = 185,542.80/x
  3. Step 3: Cross multiply
    559,519.80x = 839,190.60 × 185,542.80
  4. Step 4: Simplify right side
    559,519.80x = 155,705,773,657.68
  5. Step 5: Solve for x
    x = 155,705,773,657.68/559,519.80
  6. Step 6: Final answer
    x = 278,284.65

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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.