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Finding the Fourth Proportional to 228,883.04, 315,858.48 and 126,908.56

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Solution

The fourth proportional to 228,883.04, 315,858.48 and 126,908.56 is: 175,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,883.04 : 315,858.48 = 126,908.56 : x
  2. Step 2: Convert to fraction form
    228,883.04/315,858.48 = 126,908.56/x
  3. Step 3: Cross multiply
    228,883.04x = 315,858.48 × 126,908.56
  4. Step 4: Simplify right side
    228,883.04x = 40,085,144,860.59
  5. Step 5: Solve for x
    x = 40,085,144,860.59/228,883.04
  6. Step 6: Final answer
    x = 175,133.75

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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.