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Finding the Fourth Proportional to 67,064.52, 92,551.54 and 40,211.40

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Solution

The fourth proportional to 67,064.52, 92,551.54 and 40,211.40 is: 55,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,064.52 : 92,551.54 = 40,211.40 : x
  2. Step 2: Convert to fraction form
    67,064.52/92,551.54 = 40,211.40/x
  3. Step 3: Cross multiply
    67,064.52x = 92,551.54 × 40,211.40
  4. Step 4: Simplify right side
    67,064.52x = 3,721,626,995.56
  5. Step 5: Solve for x
    x = 3,721,626,995.56/67,064.52
  6. Step 6: Final answer
    x = 55,493.23

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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.