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Finding the Fourth Proportional to 213,972.60, 321,009.66 and 73,727.04

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Solution

The fourth proportional to 213,972.60, 321,009.66 and 73,727.04 is: 110,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,972.60 : 321,009.66 = 73,727.04 : x
  2. Step 2: Convert to fraction form
    213,972.60/321,009.66 = 73,727.04/x
  3. Step 3: Cross multiply
    213,972.60x = 321,009.66 × 73,727.04
  4. Step 4: Simplify right side
    213,972.60x = 23,667,092,043.21
  5. Step 5: Solve for x
    x = 23,667,092,043.21/213,972.60
  6. Step 6: Final answer
    x = 110,608.05

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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.