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Finding the Fourth Proportional to 79,463.74, 119,299.78 and 53,285.62

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Solution

The fourth proportional to 79,463.74, 119,299.78 and 53,285.62 is: 79,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,463.74 : 119,299.78 = 53,285.62 : x
  2. Step 2: Convert to fraction form
    79,463.74/119,299.78 = 53,285.62/x
  3. Step 3: Cross multiply
    79,463.74x = 119,299.78 × 53,285.62
  4. Step 4: Simplify right side
    79,463.74x = 6,356,962,743.16
  5. Step 5: Solve for x
    x = 6,356,962,743.16/79,463.74
  6. Step 6: Final answer
    x = 79,998.28

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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.