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Finding the Fourth Proportional to 125,896.18, 188,878.87 and 37,149.69

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Solution

The fourth proportional to 125,896.18, 188,878.87 and 37,149.69 is: 55,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,896.18 : 188,878.87 = 37,149.69 : x
  2. Step 2: Convert to fraction form
    125,896.18/188,878.87 = 37,149.69/x
  3. Step 3: Cross multiply
    125,896.18x = 188,878.87 × 37,149.69
  4. Step 4: Simplify right side
    125,896.18x = 7,016,791,468.05
  5. Step 5: Solve for x
    x = 7,016,791,468.05/125,896.18
  6. Step 6: Final answer
    x = 55,734.74

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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.