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Finding the Fourth Proportional to 354,151.38, 531,383.49 and 185,631.36

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Solution

The fourth proportional to 354,151.38, 531,383.49 and 185,631.36 is: 278,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,151.38 : 531,383.49 = 185,631.36 : x
  2. Step 2: Convert to fraction form
    354,151.38/531,383.49 = 185,631.36/x
  3. Step 3: Cross multiply
    354,151.38x = 531,383.49 × 185,631.36
  4. Step 4: Simplify right side
    354,151.38x = 98,641,439,930.25
  5. Step 5: Solve for x
    x = 98,641,439,930.25/354,151.38
  6. Step 6: Final answer
    x = 278,529.03

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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.