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Finding the Fourth Proportional to 262,426.46, 393,702.15 and 84,933.47

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Solution

The fourth proportional to 262,426.46, 393,702.15 and 84,933.47 is: 127,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,426.46 : 393,702.15 = 84,933.47 : x
  2. Step 2: Convert to fraction form
    262,426.46/393,702.15 = 84,933.47/x
  3. Step 3: Cross multiply
    262,426.46x = 393,702.15 × 84,933.47
  4. Step 4: Simplify right side
    262,426.46x = 33,438,491,048.72
  5. Step 5: Solve for x
    x = 33,438,491,048.72/262,426.46
  6. Step 6: Final answer
    x = 127,420.42

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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.