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Finding the Fourth Proportional to 228,832.88, 315,760.14 and 126,857.38

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Solution

The fourth proportional to 228,832.88, 315,760.14 and 126,857.38 is: 175,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,832.88 : 315,760.14 = 126,857.38 : x
  2. Step 2: Convert to fraction form
    228,832.88/315,760.14 = 126,857.38/x
  3. Step 3: Cross multiply
    228,832.88x = 315,760.14 × 126,857.38
  4. Step 4: Simplify right side
    228,832.88x = 40,056,504,068.83
  5. Step 5: Solve for x
    x = 40,056,504,068.83/228,832.88
  6. Step 6: Final answer
    x = 175,046.98

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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.