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Finding the Fourth Proportional to 73,233.20, 109,720.20 and 68,567.60

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Solution

The fourth proportional to 73,233.20, 109,720.20 and 68,567.60 is: 102,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,233.20 : 109,720.20 = 68,567.60 : x
  2. Step 2: Convert to fraction form
    73,233.20/109,720.20 = 68,567.60/x
  3. Step 3: Cross multiply
    73,233.20x = 109,720.20 × 68,567.60
  4. Step 4: Simplify right side
    73,233.20x = 7,523,250,785.52
  5. Step 5: Solve for x
    x = 7,523,250,785.52/73,233.20
  6. Step 6: Final answer
    x = 102,730.06

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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.