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Finding the Fourth Proportional to 108,876.57, 150,211.72 and 68,593.92

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Solution

The fourth proportional to 108,876.57, 150,211.72 and 68,593.92 is: 94,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.57 : 150,211.72 = 68,593.92 : x
  2. Step 2: Convert to fraction form
    108,876.57/150,211.72 = 68,593.92/x
  3. Step 3: Cross multiply
    108,876.57x = 150,211.72 × 68,593.92
  4. Step 4: Simplify right side
    108,876.57x = 10,303,609,841.35
  5. Step 5: Solve for x
    x = 10,303,609,841.35/108,876.57
  6. Step 6: Final answer
    x = 94,635.70

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1.5x scale

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.