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Finding the Fourth Proportional to 194,408.40, 291,568.86 and 69,749.40

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Solution

The fourth proportional to 194,408.40, 291,568.86 and 69,749.40 is: 104,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,408.40 : 291,568.86 = 69,749.40 : x
  2. Step 2: Convert to fraction form
    194,408.40/291,568.86 = 69,749.40/x
  3. Step 3: Cross multiply
    194,408.40x = 291,568.86 × 69,749.40
  4. Step 4: Simplify right side
    194,408.40x = 20,336,753,043.68
  5. Step 5: Solve for x
    x = 20,336,753,043.68/194,408.40
  6. Step 6: Final answer
    x = 104,608.41

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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.