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Finding the Fourth Proportional to 125,661.22, 188,519.64 and 41,447.40

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Solution

The fourth proportional to 125,661.22, 188,519.64 and 41,447.40 is: 62,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,661.22 : 188,519.64 = 41,447.40 : x
  2. Step 2: Convert to fraction form
    125,661.22/188,519.64 = 41,447.40/x
  3. Step 3: Cross multiply
    125,661.22x = 188,519.64 × 41,447.40
  4. Step 4: Simplify right side
    125,661.22x = 7,813,648,926.94
  5. Step 5: Solve for x
    x = 7,813,648,926.94/125,661.22
  6. Step 6: Final answer
    x = 62,180.27

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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.