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Finding the Fourth Proportional to 213,794.10, 320,615.55 and 73,520.10

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Solution

The fourth proportional to 213,794.10, 320,615.55 and 73,520.10 is: 110,254.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,794.10 : 320,615.55 = 73,520.10 : x
  2. Step 2: Convert to fraction form
    213,794.10/320,615.55 = 73,520.10/x
  3. Step 3: Cross multiply
    213,794.10x = 320,615.55 × 73,520.10
  4. Step 4: Simplify right side
    213,794.10x = 23,571,687,297.56
  5. Step 5: Solve for x
    x = 23,571,687,297.56/213,794.10
  6. Step 6: Final answer
    x = 110,254.15

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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.