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Finding the Fourth Proportional to 228,944.98, 315,963.48 and 127,003.28

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Solution

The fourth proportional to 228,944.98, 315,963.48 and 127,003.28 is: 175,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,944.98 : 315,963.48 = 127,003.28 : x
  2. Step 2: Convert to fraction form
    228,944.98/315,963.48 = 127,003.28/x
  3. Step 3: Cross multiply
    228,944.98x = 315,963.48 × 127,003.28
  4. Step 4: Simplify right side
    228,944.98x = 40,128,399,882.60
  5. Step 5: Solve for x
    x = 40,128,399,882.60/228,944.98
  6. Step 6: Final answer
    x = 175,275.30

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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.