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Finding the Fourth Proportional to 228,806.62, 315,755.25 and 126,833.18

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Solution

The fourth proportional to 228,806.62, 315,755.25 and 126,833.18 is: 175,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,806.62 : 315,755.25 = 126,833.18 : x
  2. Step 2: Convert to fraction form
    228,806.62/315,755.25 = 126,833.18/x
  3. Step 3: Cross multiply
    228,806.62x = 315,755.25 × 126,833.18
  4. Step 4: Simplify right side
    228,806.62x = 40,048,242,459.20
  5. Step 5: Solve for x
    x = 40,048,242,459.20/228,806.62
  6. Step 6: Final answer
    x = 175,030.96

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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.