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Finding the Fourth Proportional to 79,886.52, 119,222.28 and 71,029.44

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Solution

The fourth proportional to 79,886.52, 119,222.28 and 71,029.44 is: 106,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,886.52 : 119,222.28 = 71,029.44 : x
  2. Step 2: Convert to fraction form
    79,886.52/119,222.28 = 71,029.44/x
  3. Step 3: Cross multiply
    79,886.52x = 119,222.28 × 71,029.44
  4. Step 4: Simplify right side
    79,886.52x = 8,468,291,783.92
  5. Step 5: Solve for x
    x = 8,468,291,783.92/79,886.52
  6. Step 6: Final answer
    x = 106,004.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.