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Finding the Fourth Proportional to 109,617.20, 164,425.80 and 50,568.20

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Solution

The fourth proportional to 109,617.20, 164,425.80 and 50,568.20 is: 75,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,617.20 : 164,425.80 = 50,568.20 : x
  2. Step 2: Convert to fraction form
    109,617.20/164,425.80 = 50,568.20/x
  3. Step 3: Cross multiply
    109,617.20x = 164,425.80 × 50,568.20
  4. Step 4: Simplify right side
    109,617.20x = 8,314,716,739.56
  5. Step 5: Solve for x
    x = 8,314,716,739.56/109,617.20
  6. Step 6: Final answer
    x = 75,852.30

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1.5x scale

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.