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Finding the Fourth Proportional to 101,383.80, 151,951.14 and 56,917.32

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Solution

The fourth proportional to 101,383.80, 151,951.14 and 56,917.32 is: 85,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,383.80 : 151,951.14 = 56,917.32 : x
  2. Step 2: Convert to fraction form
    101,383.80/151,951.14 = 56,917.32/x
  3. Step 3: Cross multiply
    101,383.80x = 151,951.14 × 56,917.32
  4. Step 4: Simplify right side
    101,383.80x = 8,648,651,659.74
  5. Step 5: Solve for x
    x = 8,648,651,659.74/101,383.80
  6. Step 6: Final answer
    x = 85,306.05

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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.