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Finding the Fourth Proportional to 79,796.62, 119,341.99 and 70,973.85

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Solution

The fourth proportional to 79,796.62, 119,341.99 and 70,973.85 is: 106,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.62 : 119,341.99 = 70,973.85 : x
  2. Step 2: Convert to fraction form
    79,796.62/119,341.99 = 70,973.85/x
  3. Step 3: Cross multiply
    79,796.62x = 119,341.99 × 70,973.85
  4. Step 4: Simplify right side
    79,796.62x = 8,470,160,496.96
  5. Step 5: Solve for x
    x = 8,470,160,496.96/79,796.62
  6. Step 6: Final answer
    x = 106,146.86

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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.