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Finding the Fourth Proportional to 69,462.50, 104,193.76 and 16,871.63

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Solution

The fourth proportional to 69,462.50, 104,193.76 and 16,871.63 is: 25,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,462.50 : 104,193.76 = 16,871.63 : x
  2. Step 2: Convert to fraction form
    69,462.50/104,193.76 = 16,871.63/x
  3. Step 3: Cross multiply
    69,462.50x = 104,193.76 × 16,871.63
  4. Step 4: Simplify right side
    69,462.50x = 1,757,918,743.16
  5. Step 5: Solve for x
    x = 1,757,918,743.16/69,462.50
  6. Step 6: Final answer
    x = 25,307.45

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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.