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Finding the Fourth Proportional to 73,287.84, 109,760.64 and 53,517.36

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Solution

The fourth proportional to 73,287.84, 109,760.64 and 53,517.36 is: 80,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,287.84 : 109,760.64 = 53,517.36 : x
  2. Step 2: Convert to fraction form
    73,287.84/109,760.64 = 53,517.36/x
  3. Step 3: Cross multiply
    73,287.84x = 109,760.64 × 53,517.36
  4. Step 4: Simplify right side
    73,287.84x = 5,874,099,684.71
  5. Step 5: Solve for x
    x = 5,874,099,684.71/73,287.84
  6. Step 6: Final answer
    x = 80,151.08

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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.