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Finding the Fourth Proportional to 67,252.69, 92,800.11 and 40,399.98

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Solution

The fourth proportional to 67,252.69, 92,800.11 and 40,399.98 is: 55,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,252.69 : 92,800.11 = 40,399.98 : x
  2. Step 2: Convert to fraction form
    67,252.69/92,800.11 = 40,399.98/x
  3. Step 3: Cross multiply
    67,252.69x = 92,800.11 × 40,399.98
  4. Step 4: Simplify right side
    67,252.69x = 3,749,122,588.00
  5. Step 5: Solve for x
    x = 3,749,122,588.00/67,252.69
  6. Step 6: Final answer
    x = 55,746.80

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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.