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Finding the Fourth Proportional to 176,117.80, 263,874.30 and 82,431.40

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Solution

The fourth proportional to 176,117.80, 263,874.30 and 82,431.40 is: 123,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,117.80 : 263,874.30 = 82,431.40 : x
  2. Step 2: Convert to fraction form
    176,117.80/263,874.30 = 82,431.40/x
  3. Step 3: Cross multiply
    176,117.80x = 263,874.30 × 82,431.40
  4. Step 4: Simplify right side
    176,117.80x = 21,751,527,973.02
  5. Step 5: Solve for x
    x = 21,751,527,973.02/176,117.80
  6. Step 6: Final answer
    x = 123,505.56

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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.