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Finding the Fourth Proportional to 96,388.28, 133,010.61 and 53,938.61

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Solution

The fourth proportional to 96,388.28, 133,010.61 and 53,938.61 is: 74,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,388.28 : 133,010.61 = 53,938.61 : x
  2. Step 2: Convert to fraction form
    96,388.28/133,010.61 = 53,938.61/x
  3. Step 3: Cross multiply
    96,388.28x = 133,010.61 × 53,938.61
  4. Step 4: Simplify right side
    96,388.28x = 7,174,407,418.65
  5. Step 5: Solve for x
    x = 7,174,407,418.65/96,388.28
  6. Step 6: Final answer
    x = 74,432.36

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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.