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Finding the Fourth Proportional to 99,692.57, 149,539.77 and 29,571.89

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Solution

The fourth proportional to 99,692.57, 149,539.77 and 29,571.89 is: 44,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692.57 : 149,539.77 = 29,571.89 : x
  2. Step 2: Convert to fraction form
    99,692.57/149,539.77 = 29,571.89/x
  3. Step 3: Cross multiply
    99,692.57x = 149,539.77 × 29,571.89
  4. Step 4: Simplify right side
    99,692.57x = 4,422,172,881.37
  5. Step 5: Solve for x
    x = 4,422,172,881.37/99,692.57
  6. Step 6: Final answer
    x = 44,358.10

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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.