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Finding the Fourth Proportional to 69,615.49, 104,406.51 and 32,139.56

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Solution

The fourth proportional to 69,615.49, 104,406.51 and 32,139.56 is: 48,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,615.49 : 104,406.51 = 32,139.56 : x
  2. Step 2: Convert to fraction form
    69,615.49/104,406.51 = 32,139.56/x
  3. Step 3: Cross multiply
    69,615.49x = 104,406.51 × 32,139.56
  4. Step 4: Simplify right side
    69,615.49x = 3,355,579,290.04
  5. Step 5: Solve for x
    x = 3,355,579,290.04/69,615.49
  6. Step 6: Final answer
    x = 48,201.62

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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.