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Finding the Fourth Proportional to 228,626.63, 315,500.49 and 126,649.83

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Solution

The fourth proportional to 228,626.63, 315,500.49 and 126,649.83 is: 174,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,626.63 : 315,500.49 = 126,649.83 : x
  2. Step 2: Convert to fraction form
    228,626.63/315,500.49 = 126,649.83/x
  3. Step 3: Cross multiply
    228,626.63x = 315,500.49 × 126,649.83
  4. Step 4: Simplify right side
    228,626.63x = 39,958,083,423.42
  5. Step 5: Solve for x
    x = 39,958,083,423.42/228,626.63
  6. Step 6: Final answer
    x = 174,774.41

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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.