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Finding the Fourth Proportional to 67,246.44, 92,800.35 and 40,389.40

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Solution

The fourth proportional to 67,246.44, 92,800.35 and 40,389.40 is: 55,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,246.44 : 92,800.35 = 40,389.40 : x
  2. Step 2: Convert to fraction form
    67,246.44/92,800.35 = 40,389.40/x
  3. Step 3: Cross multiply
    67,246.44x = 92,800.35 × 40,389.40
  4. Step 4: Simplify right side
    67,246.44x = 3,748,150,572.29
  5. Step 5: Solve for x
    x = 3,748,150,572.29/67,246.44
  6. Step 6: Final answer
    x = 55,737.53

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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.