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Finding the Fourth Proportional to 109,105.20, 163,762.20 and 56,552.40

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Solution

The fourth proportional to 109,105.20, 163,762.20 and 56,552.40 is: 84,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,105.20 : 163,762.20 = 56,552.40 : x
  2. Step 2: Convert to fraction form
    109,105.20/163,762.20 = 56,552.40/x
  3. Step 3: Cross multiply
    109,105.20x = 163,762.20 × 56,552.40
  4. Step 4: Simplify right side
    109,105.20x = 9,261,145,439.28
  5. Step 5: Solve for x
    x = 9,261,145,439.28/109,105.20
  6. Step 6: Final answer
    x = 84,882.71

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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.