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Finding the Fourth Proportional to 316,850.63, 437,253.89 and 173,615.81

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Solution

The fourth proportional to 316,850.63, 437,253.89 and 173,615.81 is: 239,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,850.63 : 437,253.89 = 173,615.81 : x
  2. Step 2: Convert to fraction form
    316,850.63/437,253.89 = 173,615.81/x
  3. Step 3: Cross multiply
    316,850.63x = 437,253.89 × 173,615.81
  4. Step 4: Simplify right side
    316,850.63x = 75,914,185,233.65
  5. Step 5: Solve for x
    x = 75,914,185,233.65/316,850.63
  6. Step 6: Final answer
    x = 239,589.82

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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.