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Finding the Fourth Proportional to 169,845.30, 254,771.60 and 61,771.05

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Solution

The fourth proportional to 169,845.30, 254,771.60 and 61,771.05 is: 92,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,845.30 : 254,771.60 = 61,771.05 : x
  2. Step 2: Convert to fraction form
    169,845.30/254,771.60 = 61,771.05/x
  3. Step 3: Cross multiply
    169,845.30x = 254,771.60 × 61,771.05
  4. Step 4: Simplify right side
    169,845.30x = 15,737,508,933.32
  5. Step 5: Solve for x
    x = 15,737,508,933.32/169,845.30
  6. Step 6: Final answer
    x = 92,657.90

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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.