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Finding the Fourth Proportional to 70,879.42, 97,679.01 and 50,701.27

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Solution

The fourth proportional to 70,879.42, 97,679.01 and 50,701.27 is: 69,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,879.42 : 97,679.01 = 50,701.27 : x
  2. Step 2: Convert to fraction form
    70,879.42/97,679.01 = 50,701.27/x
  3. Step 3: Cross multiply
    70,879.42x = 97,679.01 × 50,701.27
  4. Step 4: Simplify right side
    70,879.42x = 4,952,449,859.34
  5. Step 5: Solve for x
    x = 4,952,449,859.34/70,879.42
  6. Step 6: Final answer
    x = 69,871.48

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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.