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Finding the Fourth Proportional to 228,851.16, 315,801.90 and 126,873.24

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Solution

The fourth proportional to 228,851.16, 315,801.90 and 126,873.24 is: 175,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,851.16 : 315,801.90 = 126,873.24 : x
  2. Step 2: Convert to fraction form
    228,851.16/315,801.90 = 126,873.24/x
  3. Step 3: Cross multiply
    228,851.16x = 315,801.90 × 126,873.24
  4. Step 4: Simplify right side
    228,851.16x = 40,066,810,251.16
  5. Step 5: Solve for x
    x = 40,066,810,251.16/228,851.16
  6. Step 6: Final answer
    x = 175,078.03

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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.