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Finding the Fourth Proportional to 125,991.11, 188,921.05 and 47,040.41

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Solution

The fourth proportional to 125,991.11, 188,921.05 and 47,040.41 is: 70,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,991.11 : 188,921.05 = 47,040.41 : x
  2. Step 2: Convert to fraction form
    125,991.11/188,921.05 = 47,040.41/x
  3. Step 3: Cross multiply
    125,991.11x = 188,921.05 × 47,040.41
  4. Step 4: Simplify right side
    125,991.11x = 8,886,923,649.63
  5. Step 5: Solve for x
    x = 8,886,923,649.63/125,991.11
  6. Step 6: Final answer
    x = 70,536.12

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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.