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Finding the Fourth Proportional to 354,313.71, 531,189.90 and 176,729.31

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Solution

The fourth proportional to 354,313.71, 531,189.90 and 176,729.31 is: 264,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,313.71 : 531,189.90 = 176,729.31 : x
  2. Step 2: Convert to fraction form
    354,313.71/531,189.90 = 176,729.31/x
  3. Step 3: Cross multiply
    354,313.71x = 531,189.90 × 176,729.31
  4. Step 4: Simplify right side
    354,313.71x = 93,876,824,505.97
  5. Step 5: Solve for x
    x = 93,876,824,505.97/354,313.71
  6. Step 6: Final answer
    x = 264,953.97

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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.