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Finding the Fourth Proportional to 79,807.20, 119,701.20 and 33,055.20

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Solution

The fourth proportional to 79,807.20, 119,701.20 and 33,055.20 is: 49,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,807.20 : 119,701.20 = 33,055.20 : x
  2. Step 2: Convert to fraction form
    79,807.20/119,701.20 = 33,055.20/x
  3. Step 3: Cross multiply
    79,807.20x = 119,701.20 × 33,055.20
  4. Step 4: Simplify right side
    79,807.20x = 3,956,747,106.24
  5. Step 5: Solve for x
    x = 3,956,747,106.24/79,807.20
  6. Step 6: Final answer
    x = 49,578.82

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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.