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Finding the Fourth Proportional to 176,791.32, 265,187.70 and 71,612.28

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Solution

The fourth proportional to 176,791.32, 265,187.70 and 71,612.28 is: 107,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,791.32 : 265,187.70 = 71,612.28 : x
  2. Step 2: Convert to fraction form
    176,791.32/265,187.70 = 71,612.28/x
  3. Step 3: Cross multiply
    176,791.32x = 265,187.70 × 71,612.28
  4. Step 4: Simplify right side
    176,791.32x = 18,990,695,824.96
  5. Step 5: Solve for x
    x = 18,990,695,824.96/176,791.32
  6. Step 6: Final answer
    x = 107,418.71

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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.