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Finding the Fourth Proportional to 101,013.20, 151,505.40 and 34,456.40

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Solution

The fourth proportional to 101,013.20, 151,505.40 and 34,456.40 is: 51,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,013.20 : 151,505.40 = 34,456.40 : x
  2. Step 2: Convert to fraction form
    101,013.20/151,505.40 = 34,456.40/x
  3. Step 3: Cross multiply
    101,013.20x = 151,505.40 × 34,456.40
  4. Step 4: Simplify right side
    101,013.20x = 5,220,330,664.56
  5. Step 5: Solve for x
    x = 5,220,330,664.56/101,013.20
  6. Step 6: Final answer
    x = 51,679.69

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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.