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Finding the Fourth Proportional to 67,349.36, 92,964.64 and 40,133.98

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Solution

The fourth proportional to 67,349.36, 92,964.64 and 40,133.98 is: 55,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,349.36 : 92,964.64 = 40,133.98 : x
  2. Step 2: Convert to fraction form
    67,349.36/92,964.64 = 40,133.98/x
  3. Step 3: Cross multiply
    67,349.36x = 92,964.64 × 40,133.98
  4. Step 4: Simplify right side
    67,349.36x = 3,731,041,168.84
  5. Step 5: Solve for x
    x = 3,731,041,168.84/67,349.36
  6. Step 6: Final answer
    x = 55,398.31

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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.