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Finding the Fourth Proportional to 100,572.80, 150,945.60 and 44,499.20

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Solution

The fourth proportional to 100,572.80, 150,945.60 and 44,499.20 is: 66,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,572.80 : 150,945.60 = 44,499.20 : x
  2. Step 2: Convert to fraction form
    100,572.80/150,945.60 = 44,499.20/x
  3. Step 3: Cross multiply
    100,572.80x = 150,945.60 × 44,499.20
  4. Step 4: Simplify right side
    100,572.80x = 6,716,958,443.52
  5. Step 5: Solve for x
    x = 6,716,958,443.52/100,572.80
  6. Step 6: Final answer
    x = 66,787.03

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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.