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Finding the Fourth Proportional to 316,938.44, 437,378.40 and 173,695.34

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Solution

The fourth proportional to 316,938.44, 437,378.40 and 173,695.34 is: 239,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,938.44 : 437,378.40 = 173,695.34 : x
  2. Step 2: Convert to fraction form
    316,938.44/437,378.40 = 173,695.34/x
  3. Step 3: Cross multiply
    316,938.44x = 437,378.40 × 173,695.34
  4. Step 4: Simplify right side
    316,938.44x = 75,970,589,896.66
  5. Step 5: Solve for x
    x = 75,970,589,896.66/316,938.44
  6. Step 6: Final answer
    x = 239,701.41

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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.