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Finding the Fourth Proportional to 67,554.88, 101,352.64 and 47,871.36

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Solution

The fourth proportional to 67,554.88, 101,352.64 and 47,871.36 is: 71,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,554.88 : 101,352.64 = 47,871.36 : x
  2. Step 2: Convert to fraction form
    67,554.88/101,352.64 = 47,871.36/x
  3. Step 3: Cross multiply
    67,554.88x = 101,352.64 × 47,871.36
  4. Step 4: Simplify right side
    67,554.88x = 4,851,888,716.39
  5. Step 5: Solve for x
    x = 4,851,888,716.39/67,554.88
  6. Step 6: Final answer
    x = 71,821.44

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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.