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Finding the Fourth Proportional to 316,536.73, 436,821.96 and 173,310.10

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Solution

The fourth proportional to 316,536.73, 436,821.96 and 173,310.10 is: 239,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,536.73 : 436,821.96 = 173,310.10 : x
  2. Step 2: Convert to fraction form
    316,536.73/436,821.96 = 173,310.10/x
  3. Step 3: Cross multiply
    316,536.73x = 436,821.96 × 173,310.10
  4. Step 4: Simplify right side
    316,536.73x = 75,705,657,127.65
  5. Step 5: Solve for x
    x = 75,705,657,127.65/316,536.73
  6. Step 6: Final answer
    x = 239,168.64

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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.