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Finding the Fourth Proportional to 67,722.98, 101,588.12 and 28,240.34

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Solution

The fourth proportional to 67,722.98, 101,588.12 and 28,240.34 is: 42,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,722.98 : 101,588.12 = 28,240.34 : x
  2. Step 2: Convert to fraction form
    67,722.98/101,588.12 = 28,240.34/x
  3. Step 3: Cross multiply
    67,722.98x = 101,588.12 × 28,240.34
  4. Step 4: Simplify right side
    67,722.98x = 2,868,882,907.56
  5. Step 5: Solve for x
    x = 2,868,882,907.56/67,722.98
  6. Step 6: Final answer
    x = 42,362.03

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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.