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Finding the Fourth Proportional to 194,469.60, 291,704.40 and 128,114.40

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Solution

The fourth proportional to 194,469.60, 291,704.40 and 128,114.40 is: 192,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,469.60 : 291,704.40 = 128,114.40 : x
  2. Step 2: Convert to fraction form
    194,469.60/291,704.40 = 128,114.40/x
  3. Step 3: Cross multiply
    194,469.60x = 291,704.40 × 128,114.40
  4. Step 4: Simplify right side
    194,469.60x = 37,371,534,183.36
  5. Step 5: Solve for x
    x = 37,371,534,183.36/194,469.60
  6. Step 6: Final answer
    x = 192,171.60

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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.