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Finding the Fourth Proportional to 197,171.70, 295,757.55 and 126,312.90

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Solution

The fourth proportional to 197,171.70, 295,757.55 and 126,312.90 is: 189,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,171.70 : 295,757.55 = 126,312.90 : x
  2. Step 2: Convert to fraction form
    197,171.70/295,757.55 = 126,312.90/x
  3. Step 3: Cross multiply
    197,171.70x = 295,757.55 × 126,312.90
  4. Step 4: Simplify right side
    197,171.70x = 37,357,993,837.40
  5. Step 5: Solve for x
    x = 37,357,993,837.40/197,171.70
  6. Step 6: Final answer
    x = 189,469.35

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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.