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Finding the Fourth Proportional to 141,382.68, 194,990.67 and 93,640.20

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Solution

The fourth proportional to 141,382.68, 194,990.67 and 93,640.20 is: 129,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,382.68 : 194,990.67 = 93,640.20 : x
  2. Step 2: Convert to fraction form
    141,382.68/194,990.67 = 93,640.20/x
  3. Step 3: Cross multiply
    141,382.68x = 194,990.67 × 93,640.20
  4. Step 4: Simplify right side
    141,382.68x = 18,258,965,336.93
  5. Step 5: Solve for x
    x = 18,258,965,336.93/141,382.68
  6. Step 6: Final answer
    x = 129,145.70

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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.