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Finding the Fourth Proportional to 67,381.47, 92,998.53 and 40,527.54

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Solution

The fourth proportional to 67,381.47, 92,998.53 and 40,527.54 is: 55,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,381.47 : 92,998.53 = 40,527.54 : x
  2. Step 2: Convert to fraction form
    67,381.47/92,998.53 = 40,527.54/x
  3. Step 3: Cross multiply
    67,381.47x = 92,998.53 × 40,527.54
  4. Step 4: Simplify right side
    67,381.47x = 3,769,001,644.52
  5. Step 5: Solve for x
    x = 3,769,001,644.52/67,381.47
  6. Step 6: Final answer
    x = 55,935.28

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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.