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Finding the Fourth Proportional to 228,468.57, 315,286.92 and 127,866.57

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Solution

The fourth proportional to 228,468.57, 315,286.92 and 127,866.57 is: 176,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,468.57 : 315,286.92 = 127,866.57 : x
  2. Step 2: Convert to fraction form
    228,468.57/315,286.92 = 127,866.57/x
  3. Step 3: Cross multiply
    228,468.57x = 315,286.92 × 127,866.57
  4. Step 4: Simplify right side
    228,468.57x = 40,314,657,026.26
  5. Step 5: Solve for x
    x = 40,314,657,026.26/228,468.57
  6. Step 6: Final answer
    x = 176,456.03

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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.