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Finding the Fourth Proportional to 195,689.16, 270,046.17 and 109,651.68

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Solution

The fourth proportional to 195,689.16, 270,046.17 and 109,651.68 is: 151,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,689.16 : 270,046.17 = 109,651.68 : x
  2. Step 2: Convert to fraction form
    195,689.16/270,046.17 = 109,651.68/x
  3. Step 3: Cross multiply
    195,689.16x = 270,046.17 × 109,651.68
  4. Step 4: Simplify right side
    195,689.16x = 29,611,016,218.07
  5. Step 5: Solve for x
    x = 29,611,016,218.07/195,689.16
  6. Step 6: Final answer
    x = 151,316.59

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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.