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Finding the Fourth Proportional to 188,821.80, 283,235.87 and 55,671.77

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Solution

The fourth proportional to 188,821.80, 283,235.87 and 55,671.77 is: 83,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,821.80 : 283,235.87 = 55,671.77 : x
  2. Step 2: Convert to fraction form
    188,821.80/283,235.87 = 55,671.77/x
  3. Step 3: Cross multiply
    188,821.80x = 283,235.87 × 55,671.77
  4. Step 4: Simplify right side
    188,821.80x = 15,768,243,057.66
  5. Step 5: Solve for x
    x = 15,768,243,057.66/188,821.80
  6. Step 6: Final answer
    x = 83,508.59

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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.