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Finding the Fourth Proportional to 79,855.62, 119,866.49 and 58,819.40

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Solution

The fourth proportional to 79,855.62, 119,866.49 and 58,819.40 is: 88,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,855.62 : 119,866.49 = 58,819.40 : x
  2. Step 2: Convert to fraction form
    79,855.62/119,866.49 = 58,819.40/x
  3. Step 3: Cross multiply
    79,855.62x = 119,866.49 × 58,819.40
  4. Step 4: Simplify right side
    79,855.62x = 7,050,474,128.48
  5. Step 5: Solve for x
    x = 7,050,474,128.48/79,855.62
  6. Step 6: Final answer
    x = 88,290.27

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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.