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Finding the Fourth Proportional to 282,039.99, 423,018.44 and 92,520.38

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Solution

The fourth proportional to 282,039.99, 423,018.44 and 92,520.38 is: 138,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,039.99 : 423,018.44 = 92,520.38 : x
  2. Step 2: Convert to fraction form
    282,039.99/423,018.44 = 92,520.38/x
  3. Step 3: Cross multiply
    282,039.99x = 423,018.44 × 92,520.38
  4. Step 4: Simplify right side
    282,039.99x = 39,137,824,932.02
  5. Step 5: Solve for x
    x = 39,137,824,932.02/282,039.99
  6. Step 6: Final answer
    x = 138,766.94

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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.