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Finding the Fourth Proportional to 125,872.89, 188,764.36 and 41,617.50

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Solution

The fourth proportional to 125,872.89, 188,764.36 and 41,617.50 is: 62,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,872.89 : 188,764.36 = 41,617.50 : x
  2. Step 2: Convert to fraction form
    125,872.89/188,764.36 = 41,617.50/x
  3. Step 3: Cross multiply
    125,872.89x = 188,764.36 × 41,617.50
  4. Step 4: Simplify right side
    125,872.89x = 7,855,899,940.39
  5. Step 5: Solve for x
    x = 7,855,899,940.39/125,872.89
  6. Step 6: Final answer
    x = 62,411.38

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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.