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Finding the Fourth Proportional to 70,273.31, 96,978.02 and 38,441.52

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Solution

The fourth proportional to 70,273.31, 96,978.02 and 38,441.52 is: 53,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.31 : 96,978.02 = 38,441.52 : x
  2. Step 2: Convert to fraction form
    70,273.31/96,978.02 = 38,441.52/x
  3. Step 3: Cross multiply
    70,273.31x = 96,978.02 × 38,441.52
  4. Step 4: Simplify right side
    70,273.31x = 3,727,982,303.18
  5. Step 5: Solve for x
    x = 3,727,982,303.18/70,273.31
  6. Step 6: Final answer
    x = 53,049.76

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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.