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Finding the Fourth Proportional to 70,157.44, 96,799.92 and 45,040.96

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Solution

The fourth proportional to 70,157.44, 96,799.92 and 45,040.96 is: 62,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,157.44 : 96,799.92 = 45,040.96 : x
  2. Step 2: Convert to fraction form
    70,157.44/96,799.92 = 45,040.96/x
  3. Step 3: Cross multiply
    70,157.44x = 96,799.92 × 45,040.96
  4. Step 4: Simplify right side
    70,157.44x = 4,359,961,324.72
  5. Step 5: Solve for x
    x = 4,359,961,324.72/70,157.44
  6. Step 6: Final answer
    x = 62,145.39

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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.