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Finding the Fourth Proportional to 109,990.26, 151,786.56 and 59,689.26

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Solution

The fourth proportional to 109,990.26, 151,786.56 and 59,689.26 is: 82,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,990.26 : 151,786.56 = 59,689.26 : x
  2. Step 2: Convert to fraction form
    109,990.26/151,786.56 = 59,689.26/x
  3. Step 3: Cross multiply
    109,990.26x = 151,786.56 × 59,689.26
  4. Step 4: Simplify right side
    109,990.26x = 9,060,027,444.35
  5. Step 5: Solve for x
    x = 9,060,027,444.35/109,990.26
  6. Step 6: Final answer
    x = 82,371.18

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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.