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Finding the Fourth Proportional to 99,693.26, 149,410.72 and 40,496.64

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Solution

The fourth proportional to 99,693.26, 149,410.72 and 40,496.64 is: 60,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,693.26 : 149,410.72 = 40,496.64 : x
  2. Step 2: Convert to fraction form
    99,693.26/149,410.72 = 40,496.64/x
  3. Step 3: Cross multiply
    99,693.26x = 149,410.72 × 40,496.64
  4. Step 4: Simplify right side
    99,693.26x = 6,050,631,630.31
  5. Step 5: Solve for x
    x = 6,050,631,630.31/99,693.26
  6. Step 6: Final answer
    x = 60,692.49

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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.