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Finding the Fourth Proportional to 108,226.35, 149,255.66 and 67,943.87

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Solution

The fourth proportional to 108,226.35, 149,255.66 and 67,943.87 is: 93,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,226.35 : 149,255.66 = 67,943.87 : x
  2. Step 2: Convert to fraction form
    108,226.35/149,255.66 = 67,943.87/x
  3. Step 3: Cross multiply
    108,226.35x = 149,255.66 × 67,943.87
  4. Step 4: Simplify right side
    108,226.35x = 10,141,006,073.81
  5. Step 5: Solve for x
    x = 10,141,006,073.81/108,226.35
  6. Step 6: Final answer
    x = 93,701.82

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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.