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Finding the Fourth Proportional to 223,893.20, 335,832.60 and 74,140.40

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Solution

The fourth proportional to 223,893.20, 335,832.60 and 74,140.40 is: 111,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,893.20 : 335,832.60 = 74,140.40 : x
  2. Step 2: Convert to fraction form
    223,893.20/335,832.60 = 74,140.40/x
  3. Step 3: Cross multiply
    223,893.20x = 335,832.60 × 74,140.40
  4. Step 4: Simplify right side
    223,893.20x = 24,898,763,297.04
  5. Step 5: Solve for x
    x = 24,898,763,297.04/223,893.20
  6. Step 6: Final answer
    x = 111,208.22

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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.