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Finding the Fourth Proportional to 256,552.64, 354,011.96 and 141,815.78

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Solution

The fourth proportional to 256,552.64, 354,011.96 and 141,815.78 is: 195,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,552.64 : 354,011.96 = 141,815.78 : x
  2. Step 2: Convert to fraction form
    256,552.64/354,011.96 = 141,815.78/x
  3. Step 3: Cross multiply
    256,552.64x = 354,011.96 × 141,815.78
  4. Step 4: Simplify right side
    256,552.64x = 50,204,482,236.73
  5. Step 5: Solve for x
    x = 50,204,482,236.73/256,552.64
  6. Step 6: Final answer
    x = 195,688.82

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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.