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Finding the Fourth Proportional to 101,814.92, 152,661.02 and 45,644.86

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Solution

The fourth proportional to 101,814.92, 152,661.02 and 45,644.86 is: 68,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,814.92 : 152,661.02 = 45,644.86 : x
  2. Step 2: Convert to fraction form
    101,814.92/152,661.02 = 45,644.86/x
  3. Step 3: Cross multiply
    101,814.92x = 152,661.02 × 45,644.86
  4. Step 4: Simplify right side
    101,814.92x = 6,968,190,885.36
  5. Step 5: Solve for x
    x = 6,968,190,885.36/101,814.92
  6. Step 6: Final answer
    x = 68,439.78

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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.