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Finding the Fourth Proportional to 73,203.20, 109,833.60 and 28,822.40

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Solution

The fourth proportional to 73,203.20, 109,833.60 and 28,822.40 is: 43,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.20 : 109,833.60 = 28,822.40 : x
  2. Step 2: Convert to fraction form
    73,203.20/109,833.60 = 28,822.40/x
  3. Step 3: Cross multiply
    73,203.20x = 109,833.60 × 28,822.40
  4. Step 4: Simplify right side
    73,203.20x = 3,165,667,952.64
  5. Step 5: Solve for x
    x = 3,165,667,952.64/73,203.20
  6. Step 6: Final answer
    x = 43,244.94

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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.