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Finding the Fourth Proportional to 295,909.50, 408,355.11 and 161,773.50

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Solution

The fourth proportional to 295,909.50, 408,355.11 and 161,773.50 is: 223,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,909.50 : 408,355.11 = 161,773.50 : x
  2. Step 2: Convert to fraction form
    295,909.50/408,355.11 = 161,773.50/x
  3. Step 3: Cross multiply
    295,909.50x = 408,355.11 × 161,773.50
  4. Step 4: Simplify right side
    295,909.50x = 66,061,035,387.59
  5. Step 5: Solve for x
    x = 66,061,035,387.59/295,909.50
  6. Step 6: Final answer
    x = 223,247.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.