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Finding the Fourth Proportional to 73,148.20, 109,722.30 and 17,744.20

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Solution

The fourth proportional to 73,148.20, 109,722.30 and 17,744.20 is: 26,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,148.20 : 109,722.30 = 17,744.20 : x
  2. Step 2: Convert to fraction form
    73,148.20/109,722.30 = 17,744.20/x
  3. Step 3: Cross multiply
    73,148.20x = 109,722.30 × 17,744.20
  4. Step 4: Simplify right side
    73,148.20x = 1,946,934,435.66
  5. Step 5: Solve for x
    x = 1,946,934,435.66/73,148.20
  6. Step 6: Final answer
    x = 26,616.30

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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.