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Finding the Fourth Proportional to 107,568.40, 161,352.60 and 77,846.80

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Solution

The fourth proportional to 107,568.40, 161,352.60 and 77,846.80 is: 116,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,568.40 : 161,352.60 = 77,846.80 : x
  2. Step 2: Convert to fraction form
    107,568.40/161,352.60 = 77,846.80/x
  3. Step 3: Cross multiply
    107,568.40x = 161,352.60 × 77,846.80
  4. Step 4: Simplify right side
    107,568.40x = 12,560,783,581.68
  5. Step 5: Solve for x
    x = 12,560,783,581.68/107,568.40
  6. Step 6: Final answer
    x = 116,770.20

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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.