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Finding the Fourth Proportional to 228,524.36, 315,363.33 and 126,549.69

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Solution

The fourth proportional to 228,524.36, 315,363.33 and 126,549.69 is: 174,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,524.36 : 315,363.33 = 126,549.69 : x
  2. Step 2: Convert to fraction form
    228,524.36/315,363.33 = 126,549.69/x
  3. Step 3: Cross multiply
    228,524.36x = 315,363.33 × 126,549.69
  4. Step 4: Simplify right side
    228,524.36x = 39,909,132,062.21
  5. Step 5: Solve for x
    x = 39,909,132,062.21/228,524.36
  6. Step 6: Final answer
    x = 174,638.42

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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.