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Finding the Fourth Proportional to 316,464.93, 436,722.09 and 173,234.04

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Solution

The fourth proportional to 316,464.93, 436,722.09 and 173,234.04 is: 239,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,464.93 : 436,722.09 = 173,234.04 : x
  2. Step 2: Convert to fraction form
    316,464.93/436,722.09 = 173,234.04/x
  3. Step 3: Cross multiply
    316,464.93x = 436,722.09 × 173,234.04
  4. Step 4: Simplify right side
    316,464.93x = 75,655,132,007.94
  5. Step 5: Solve for x
    x = 75,655,132,007.94/316,464.93
  6. Step 6: Final answer
    x = 239,063.24

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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.