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Finding the Fourth Proportional to 316,769.52, 475,227.72 and 92,135.28

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Solution

The fourth proportional to 316,769.52, 475,227.72 and 92,135.28 is: 138,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,769.52 : 475,227.72 = 92,135.28 : x
  2. Step 2: Convert to fraction form
    316,769.52/475,227.72 = 92,135.28/x
  3. Step 3: Cross multiply
    316,769.52x = 475,227.72 × 92,135.28
  4. Step 4: Simplify right side
    316,769.52x = 43,785,239,045.96
  5. Step 5: Solve for x
    x = 43,785,239,045.96/316,769.52
  6. Step 6: Final answer
    x = 138,224.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.