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Finding the Fourth Proportional to 108,229.43, 149,259.94 and 67,946.96

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Solution

The fourth proportional to 108,229.43, 149,259.94 and 67,946.96 is: 93,706.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,229.43 : 149,259.94 = 67,946.96 : x
  2. Step 2: Convert to fraction form
    108,229.43/149,259.94 = 67,946.96/x
  3. Step 3: Cross multiply
    108,229.43x = 149,259.94 × 67,946.96
  4. Step 4: Simplify right side
    108,229.43x = 10,141,759,376.06
  5. Step 5: Solve for x
    x = 10,141,759,376.06/108,229.43
  6. Step 6: Final answer
    x = 93,706.11

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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.