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Finding the Fourth Proportional to 73,500.40, 110,137.20 and 54,692.20

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Solution

The fourth proportional to 73,500.40, 110,137.20 and 54,692.20 is: 81,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,500.40 : 110,137.20 = 54,692.20 : x
  2. Step 2: Convert to fraction form
    73,500.40/110,137.20 = 54,692.20/x
  3. Step 3: Cross multiply
    73,500.40x = 110,137.20 × 54,692.20
  4. Step 4: Simplify right side
    73,500.40x = 6,023,645,769.84
  5. Step 5: Solve for x
    x = 6,023,645,769.84/73,500.40
  6. Step 6: Final answer
    x = 81,953.92

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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.