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Finding the Fourth Proportional to 316,453.23, 436,706.10 and 173,222.42

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Solution

The fourth proportional to 316,453.23, 436,706.10 and 173,222.42 is: 239,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,453.23 : 436,706.10 = 173,222.42 : x
  2. Step 2: Convert to fraction form
    316,453.23/436,706.10 = 173,222.42/x
  3. Step 3: Cross multiply
    316,453.23x = 436,706.10 × 173,222.42
  4. Step 4: Simplify right side
    316,453.23x = 75,647,285,287.23
  5. Step 5: Solve for x
    x = 75,647,285,287.23/316,453.23
  6. Step 6: Final answer
    x = 239,047.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.