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Finding the Fourth Proportional to 295,780.50, 408,187.17 and 161,653.14

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Solution

The fourth proportional to 295,780.50, 408,187.17 and 161,653.14 is: 223,086.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,780.50 : 408,187.17 = 161,653.14 : x
  2. Step 2: Convert to fraction form
    295,780.50/408,187.17 = 161,653.14/x
  3. Step 3: Cross multiply
    295,780.50x = 408,187.17 × 161,653.14
  4. Step 4: Simplify right side
    295,780.50x = 65,984,737,738.21
  5. Step 5: Solve for x
    x = 65,984,737,738.21/295,780.50
  6. Step 6: Final answer
    x = 223,086.84

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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.