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Finding the Fourth Proportional to 204,710.43, 307,065.63 and 79,963.95

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Solution

The fourth proportional to 204,710.43, 307,065.63 and 79,963.95 is: 119,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,710.43 : 307,065.63 = 79,963.95 : x
  2. Step 2: Convert to fraction form
    204,710.43/307,065.63 = 79,963.95/x
  3. Step 3: Cross multiply
    204,710.43x = 307,065.63 × 79,963.95
  4. Step 4: Simplify right side
    204,710.43x = 24,554,179,148.71
  5. Step 5: Solve for x
    x = 24,554,179,148.71/204,710.43
  6. Step 6: Final answer
    x = 119,945.91

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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.