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Finding the Fourth Proportional to 100,608.80, 150,931.43 and 50,562.95

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Solution

The fourth proportional to 100,608.80, 150,931.43 and 50,562.95 is: 75,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,608.80 : 150,931.43 = 50,562.95 : x
  2. Step 2: Convert to fraction form
    100,608.80/150,931.43 = 50,562.95/x
  3. Step 3: Cross multiply
    100,608.80x = 150,931.43 × 50,562.95
  4. Step 4: Simplify right side
    100,608.80x = 7,631,538,095.70
  5. Step 5: Solve for x
    x = 7,631,538,095.70/100,608.80
  6. Step 6: Final answer
    x = 75,853.58

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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.