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Finding the Fourth Proportional to 79,571.58, 119,360.61 and 32,820

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Solution

The fourth proportional to 79,571.58, 119,360.61 and 32,820 is: 49,231.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.58 : 119,360.61 = 32,820 : x
  2. Step 2: Convert to fraction form
    79,571.58/119,360.61 = 32,820/x
  3. Step 3: Cross multiply
    79,571.58x = 119,360.61 × 32,820
  4. Step 4: Simplify right side
    79,571.58x = 3,917,415,220.20
  5. Step 5: Solve for x
    x = 3,917,415,220.20/79,571.58
  6. Step 6: Final answer
    x = 49,231.34

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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.