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Finding the Fourth Proportional to 125,658.09, 188,477.88 and 36,918.54

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Solution

The fourth proportional to 125,658.09, 188,477.88 and 36,918.54 is: 55,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,658.09 : 188,477.88 = 36,918.54 : x
  2. Step 2: Convert to fraction form
    125,658.09/188,477.88 = 36,918.54/x
  3. Step 3: Cross multiply
    125,658.09x = 188,477.88 × 36,918.54
  4. Step 4: Simplify right side
    125,658.09x = 6,958,328,151.90
  5. Step 5: Solve for x
    x = 6,958,328,151.90/125,658.09
  6. Step 6: Final answer
    x = 55,375.09

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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.