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Finding the Fourth Proportional to 228,620.56, 315,579.18 and 186,105.28

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Solution

The fourth proportional to 228,620.56, 315,579.18 and 186,105.28 is: 256,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,620.56 : 315,579.18 = 186,105.28 : x
  2. Step 2: Convert to fraction form
    228,620.56/315,579.18 = 186,105.28/x
  3. Step 3: Cross multiply
    228,620.56x = 315,579.18 × 186,105.28
  4. Step 4: Simplify right side
    228,620.56x = 58,730,951,565.02
  5. Step 5: Solve for x
    x = 58,730,951,565.02/228,620.56
  6. Step 6: Final answer
    x = 256,892.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.