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Finding the Fourth Proportional to 317,085.76, 437,566.66 and 173,842.64

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Solution

The fourth proportional to 317,085.76, 437,566.66 and 173,842.64 is: 239,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,085.76 : 437,566.66 = 173,842.64 : x
  2. Step 2: Convert to fraction form
    317,085.76/437,566.66 = 173,842.64/x
  3. Step 3: Cross multiply
    317,085.76x = 437,566.66 × 173,842.64
  4. Step 4: Simplify right side
    317,085.76x = 76,067,743,350.38
  5. Step 5: Solve for x
    x = 76,067,743,350.38/317,085.76
  6. Step 6: Final answer
    x = 239,896.43

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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.