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Finding the Fourth Proportional to 317,754.54, 438,504.27 and 174,517.50

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Solution

The fourth proportional to 317,754.54, 438,504.27 and 174,517.50 is: 240,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,754.54 : 438,504.27 = 174,517.50 : x
  2. Step 2: Convert to fraction form
    317,754.54/438,504.27 = 174,517.50/x
  3. Step 3: Cross multiply
    317,754.54x = 438,504.27 × 174,517.50
  4. Step 4: Simplify right side
    317,754.54x = 76,526,668,939.73
  5. Step 5: Solve for x
    x = 76,526,668,939.73/317,754.54
  6. Step 6: Final answer
    x = 240,835.80

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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.