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Finding the Fourth Proportional to 125,161.95, 187,754.44 and 40,922.56

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Solution

The fourth proportional to 125,161.95, 187,754.44 and 40,922.56 is: 61,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,161.95 : 187,754.44 = 40,922.56 : x
  2. Step 2: Convert to fraction form
    125,161.95/187,754.44 = 40,922.56/x
  3. Step 3: Cross multiply
    125,161.95x = 187,754.44 × 40,922.56
  4. Step 4: Simplify right side
    125,161.95x = 7,683,392,336.17
  5. Step 5: Solve for x
    x = 7,683,392,336.17/125,161.95
  6. Step 6: Final answer
    x = 61,387.60

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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.