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Finding the Fourth Proportional to 228,874.11, 315,833.61 and 126,893.62

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Solution

The fourth proportional to 228,874.11, 315,833.61 and 126,893.62 is: 175,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,874.11 : 315,833.61 = 126,893.62 : x
  2. Step 2: Convert to fraction form
    228,874.11/315,833.61 = 126,893.62/x
  3. Step 3: Cross multiply
    228,874.11x = 315,833.61 × 126,893.62
  4. Step 4: Simplify right side
    228,874.11x = 40,077,270,961.21
  5. Step 5: Solve for x
    x = 40,077,270,961.21/228,874.11
  6. Step 6: Final answer
    x = 175,106.18

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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.