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Finding the Fourth Proportional to 79,887.52, 119,223.77 and 71,030.44

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Solution

The fourth proportional to 79,887.52, 119,223.77 and 71,030.44 is: 106,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,887.52 : 119,223.77 = 71,030.44 : x
  2. Step 2: Convert to fraction form
    79,887.52/119,223.77 = 71,030.44/x
  3. Step 3: Cross multiply
    79,887.52x = 119,223.77 × 71,030.44
  4. Step 4: Simplify right side
    79,887.52x = 8,468,516,841.56
  5. Step 5: Solve for x
    x = 8,468,516,841.56/79,887.52
  6. Step 6: Final answer
    x = 106,005.50

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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.