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Finding the Fourth Proportional to 99,692.44, 149,494.90 and 37,319.20

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Solution

The fourth proportional to 99,692.44, 149,494.90 and 37,319.20 is: 55,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692.44 : 149,494.90 = 37,319.20 : x
  2. Step 2: Convert to fraction form
    99,692.44/149,494.90 = 37,319.20/x
  3. Step 3: Cross multiply
    99,692.44x = 149,494.90 × 37,319.20
  4. Step 4: Simplify right side
    99,692.44x = 5,579,030,072.08
  5. Step 5: Solve for x
    x = 5,579,030,072.08/99,692.44
  6. Step 6: Final answer
    x = 55,962.42

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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.