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Finding the Fourth Proportional to 99,692.95, 149,410.25 and 40,496.33

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Solution

The fourth proportional to 99,692.95, 149,410.25 and 40,496.33 is: 60,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692.95 : 149,410.25 = 40,496.33 : x
  2. Step 2: Convert to fraction form
    99,692.95/149,410.25 = 40,496.33/x
  3. Step 3: Cross multiply
    99,692.95x = 149,410.25 × 40,496.33
  4. Step 4: Simplify right side
    99,692.95x = 6,050,566,789.38
  5. Step 5: Solve for x
    x = 6,050,566,789.38/99,692.95
  6. Step 6: Final answer
    x = 60,692.02

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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.