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Finding the Fourth Proportional to 101,333.20, 151,917.87 and 42,213.34

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Solution

The fourth proportional to 101,333.20, 151,917.87 and 42,213.34 is: 63,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,333.20 : 151,917.87 = 42,213.34 : x
  2. Step 2: Convert to fraction form
    101,333.20/151,917.87 = 42,213.34/x
  3. Step 3: Cross multiply
    101,333.20x = 151,917.87 × 42,213.34
  4. Step 4: Simplify right side
    101,333.20x = 6,412,960,698.39
  5. Step 5: Solve for x
    x = 6,412,960,698.39/101,333.20
  6. Step 6: Final answer
    x = 63,285.88

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1.5x scale

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.