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Finding the Fourth Proportional to 228,266.52, 315,007.56 and 127,664.52

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Solution

The fourth proportional to 228,266.52, 315,007.56 and 127,664.52 is: 176,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,266.52 : 315,007.56 = 127,664.52 : x
  2. Step 2: Convert to fraction form
    228,266.52/315,007.56 = 127,664.52/x
  3. Step 3: Cross multiply
    228,266.52x = 315,007.56 × 127,664.52
  4. Step 4: Simplify right side
    228,266.52x = 40,215,288,943.77
  5. Step 5: Solve for x
    x = 40,215,288,943.77/228,266.52
  6. Step 6: Final answer
    x = 176,176.90

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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.