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Finding the Fourth Proportional to 243,328.83, 365,027.97 and 74,863.20

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Solution

The fourth proportional to 243,328.83, 365,027.97 and 74,863.20 is: 112,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,328.83 : 365,027.97 = 74,863.20 : x
  2. Step 2: Convert to fraction form
    243,328.83/365,027.97 = 74,863.20/x
  3. Step 3: Cross multiply
    243,328.83x = 365,027.97 × 74,863.20
  4. Step 4: Simplify right side
    243,328.83x = 27,327,161,923.70
  5. Step 5: Solve for x
    x = 27,327,161,923.70/243,328.83
  6. Step 6: Final answer
    x = 112,305.48

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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.