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Finding the Fourth Proportional to 125,479.93, 188,179.97 and 41,220.54

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Solution

The fourth proportional to 125,479.93, 188,179.97 and 41,220.54 is: 61,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,479.93 : 188,179.97 = 41,220.54 : x
  2. Step 2: Convert to fraction form
    125,479.93/188,179.97 = 41,220.54/x
  3. Step 3: Cross multiply
    125,479.93x = 188,179.97 × 41,220.54
  4. Step 4: Simplify right side
    125,479.93x = 7,756,879,980.58
  5. Step 5: Solve for x
    x = 7,756,879,980.58/125,479.93
  6. Step 6: Final answer
    x = 61,817.69

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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.