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Finding the Fourth Proportional to 228,627.50, 315,502.02 and 126,650.86

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Solution

The fourth proportional to 228,627.50, 315,502.02 and 126,650.86 is: 174,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,627.50 : 315,502.02 = 126,650.86 : x
  2. Step 2: Convert to fraction form
    228,627.50/315,502.02 = 126,650.86/x
  3. Step 3: Cross multiply
    228,627.50x = 315,502.02 × 126,650.86
  4. Step 4: Simplify right side
    228,627.50x = 39,958,601,375.98
  5. Step 5: Solve for x
    x = 39,958,601,375.98/228,627.50
  6. Step 6: Final answer
    x = 174,776.01

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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.