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Finding the Fourth Proportional to 354,047.36, 531,169.58 and 154,385.33

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Solution

The fourth proportional to 354,047.36, 531,169.58 and 154,385.33 is: 231,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,047.36 : 531,169.58 = 154,385.33 : x
  2. Step 2: Convert to fraction form
    354,047.36/531,169.58 = 154,385.33/x
  3. Step 3: Cross multiply
    354,047.36x = 531,169.58 × 154,385.33
  4. Step 4: Simplify right side
    354,047.36x = 82,004,788,624.38
  5. Step 5: Solve for x
    x = 82,004,788,624.38/354,047.36
  6. Step 6: Final answer
    x = 231,620.96

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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.