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Finding the Fourth Proportional to 316,520.56, 436,808.22 and 173,293.96

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Solution

The fourth proportional to 316,520.56, 436,808.22 and 173,293.96 is: 239,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,520.56 : 436,808.22 = 173,293.96 : x
  2. Step 2: Convert to fraction form
    316,520.56/436,808.22 = 173,293.96/x
  3. Step 3: Cross multiply
    316,520.56x = 436,808.22 × 173,293.96
  4. Step 4: Simplify right side
    316,520.56x = 75,696,226,204.35
  5. Step 5: Solve for x
    x = 75,696,226,204.35/316,520.56
  6. Step 6: Final answer
    x = 239,151.06

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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.