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Finding the Fourth Proportional to 70,991.21, 106,475.53 and 23,602.36

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Solution

The fourth proportional to 70,991.21, 106,475.53 and 23,602.36 is: 35,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,991.21 : 106,475.53 = 23,602.36 : x
  2. Step 2: Convert to fraction form
    70,991.21/106,475.53 = 23,602.36/x
  3. Step 3: Cross multiply
    70,991.21x = 106,475.53 × 23,602.36
  4. Step 4: Simplify right side
    70,991.21x = 2,513,073,790.25
  5. Step 5: Solve for x
    x = 2,513,073,790.25/70,991.21
  6. Step 6: Final answer
    x = 35,399.79

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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.