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Finding the Fourth Proportional to 228,475.44, 315,305.96 and 126,500.90

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Solution

The fourth proportional to 228,475.44, 315,305.96 and 126,500.90 is: 174,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,475.44 : 315,305.96 = 126,500.90 : x
  2. Step 2: Convert to fraction form
    228,475.44/315,305.96 = 126,500.90/x
  3. Step 3: Cross multiply
    228,475.44x = 315,305.96 × 126,500.90
  4. Step 4: Simplify right side
    228,475.44x = 39,886,487,715.36
  5. Step 5: Solve for x
    x = 39,886,487,715.36/228,475.44
  6. Step 6: Final answer
    x = 174,576.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.