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Finding the Fourth Proportional to 125,818.89, 188,741.44 and 40,408.17

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Solution

The fourth proportional to 125,818.89, 188,741.44 and 40,408.17 is: 60,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,818.89 : 188,741.44 = 40,408.17 : x
  2. Step 2: Convert to fraction form
    125,818.89/188,741.44 = 40,408.17/x
  3. Step 3: Cross multiply
    125,818.89x = 188,741.44 × 40,408.17
  4. Step 4: Simplify right side
    125,818.89x = 7,626,696,193.56
  5. Step 5: Solve for x
    x = 7,626,696,193.56/125,818.89
  6. Step 6: Final answer
    x = 60,616.46

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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.