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Finding the Fourth Proportional to 358,856.52, 495,167.95 and 203,783.64

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Solution

The fourth proportional to 358,856.52, 495,167.95 and 203,783.64 is: 281,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,856.52 : 495,167.95 = 203,783.64 : x
  2. Step 2: Convert to fraction form
    358,856.52/495,167.95 = 203,783.64/x
  3. Step 3: Cross multiply
    358,856.52x = 495,167.95 × 203,783.64
  4. Step 4: Simplify right side
    358,856.52x = 100,907,123,767.58
  5. Step 5: Solve for x
    x = 100,907,123,767.58/358,856.52
  6. Step 6: Final answer
    x = 281,190.73

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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.