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Finding the Fourth Proportional to 63,229.94, 87,298.00 and 40,578.70

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Solution

The fourth proportional to 63,229.94, 87,298.00 and 40,578.70 is: 56,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,229.94 : 87,298.00 = 40,578.70 : x
  2. Step 2: Convert to fraction form
    63,229.94/87,298.00 = 40,578.70/x
  3. Step 3: Cross multiply
    63,229.94x = 87,298.00 × 40,578.70
  4. Step 4: Simplify right side
    63,229.94x = 3,542,438,713.22
  5. Step 5: Solve for x
    x = 3,542,438,713.22/63,229.94
  6. Step 6: Final answer
    x = 56,024.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.