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Finding the Fourth Proportional to 185,793.66, 256,391.02 and 100,908.90

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Solution

The fourth proportional to 185,793.66, 256,391.02 and 100,908.90 is: 139,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,793.66 : 256,391.02 = 100,908.90 : x
  2. Step 2: Convert to fraction form
    185,793.66/256,391.02 = 100,908.90/x
  3. Step 3: Cross multiply
    185,793.66x = 256,391.02 × 100,908.90
  4. Step 4: Simplify right side
    185,793.66x = 25,872,135,798.08
  5. Step 5: Solve for x
    x = 25,872,135,798.08/185,793.66
  6. Step 6: Final answer
    x = 139,251.98

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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.