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Finding the Fourth Proportional to 67,216.80, 100,898.10 and 37,692.30

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Solution

The fourth proportional to 67,216.80, 100,898.10 and 37,692.30 is: 56,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,216.80 : 100,898.10 = 37,692.30 : x
  2. Step 2: Convert to fraction form
    67,216.80/100,898.10 = 37,692.30/x
  3. Step 3: Cross multiply
    67,216.80x = 100,898.10 × 37,692.30
  4. Step 4: Simplify right side
    67,216.80x = 3,803,081,454.63
  5. Step 5: Solve for x
    x = 3,803,081,454.63/67,216.80
  6. Step 6: Final answer
    x = 56,579.33

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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.