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Finding the Fourth Proportional to 101,299.91, 151,956.34 and 38,970.41

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Solution

The fourth proportional to 101,299.91, 151,956.34 and 38,970.41 is: 58,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,299.91 : 151,956.34 = 38,970.41 : x
  2. Step 2: Convert to fraction form
    101,299.91/151,956.34 = 38,970.41/x
  3. Step 3: Cross multiply
    101,299.91x = 151,956.34 × 38,970.41
  4. Step 4: Simplify right side
    101,299.91x = 5,921,800,014.69
  5. Step 5: Solve for x
    x = 5,921,800,014.69/101,299.91
  6. Step 6: Final answer
    x = 58,458.10

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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.