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Finding the Fourth Proportional to 175,359.99, 263,078.96 and 81,814.71

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Solution

The fourth proportional to 175,359.99, 263,078.96 and 81,814.71 is: 122,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,359.99 : 263,078.96 = 81,814.71 : x
  2. Step 2: Convert to fraction form
    175,359.99/263,078.96 = 81,814.71/x
  3. Step 3: Cross multiply
    175,359.99x = 263,078.96 × 81,814.71
  4. Step 4: Simplify right side
    175,359.99x = 21,523,728,410.43
  5. Step 5: Solve for x
    x = 21,523,728,410.43/175,359.99
  6. Step 6: Final answer
    x = 122,740.25

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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.