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Finding the Fourth Proportional to 316,949.52, 437,393.76 and 173,706.48

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Solution

The fourth proportional to 316,949.52, 437,393.76 and 173,706.48 is: 239,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,949.52 : 437,393.76 = 173,706.48 : x
  2. Step 2: Convert to fraction form
    316,949.52/437,393.76 = 173,706.48/x
  3. Step 3: Cross multiply
    316,949.52x = 437,393.76 × 173,706.48
  4. Step 4: Simplify right side
    316,949.52x = 75,978,130,423.56
  5. Step 5: Solve for x
    x = 75,978,130,423.56/316,949.52
  6. Step 6: Final answer
    x = 239,716.82

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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.