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Finding the Fourth Proportional to 282,936.44, 424,404.72 and 72,574.36

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Solution

The fourth proportional to 282,936.44, 424,404.72 and 72,574.36 is: 108,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,936.44 : 424,404.72 = 72,574.36 : x
  2. Step 2: Convert to fraction form
    282,936.44/424,404.72 = 72,574.36/x
  3. Step 3: Cross multiply
    282,936.44x = 424,404.72 × 72,574.36
  4. Step 4: Simplify right side
    282,936.44x = 30,800,900,934.98
  5. Step 5: Solve for x
    x = 30,800,900,934.98/282,936.44
  6. Step 6: Final answer
    x = 108,861.56

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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.