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Finding the Fourth Proportional to 228,215.55, 314,913.22 and 126,224.80

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Solution

The fourth proportional to 228,215.55, 314,913.22 and 126,224.80 is: 174,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,215.55 : 314,913.22 = 126,224.80 : x
  2. Step 2: Convert to fraction form
    228,215.55/314,913.22 = 126,224.80/x
  3. Step 3: Cross multiply
    228,215.55x = 314,913.22 × 126,224.80
  4. Step 4: Simplify right side
    228,215.55x = 39,749,858,211.86
  5. Step 5: Solve for x
    x = 39,749,858,211.86/228,215.55
  6. Step 6: Final answer
    x = 174,176.82

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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.