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Finding the Fourth Proportional to 73,108.16, 109,661.28 and 23,188.16

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Solution

The fourth proportional to 73,108.16, 109,661.28 and 23,188.16 is: 34,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,108.16 : 109,661.28 = 23,188.16 : x
  2. Step 2: Convert to fraction form
    73,108.16/109,661.28 = 23,188.16/x
  3. Step 3: Cross multiply
    73,108.16x = 109,661.28 × 23,188.16
  4. Step 4: Simplify right side
    73,108.16x = 2,542,843,306.44
  5. Step 5: Solve for x
    x = 2,542,843,306.44/73,108.16
  6. Step 6: Final answer
    x = 34,781.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.