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Finding the Fourth Proportional to 319,611.70, 441,065.44 and 176,375.88

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Solution

The fourth proportional to 319,611.70, 441,065.44 and 176,375.88 is: 243,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,611.70 : 441,065.44 = 176,375.88 : x
  2. Step 2: Convert to fraction form
    319,611.70/441,065.44 = 176,375.88/x
  3. Step 3: Cross multiply
    319,611.70x = 441,065.44 × 176,375.88
  4. Step 4: Simplify right side
    319,611.70x = 77,793,305,117.59
  5. Step 5: Solve for x
    x = 77,793,305,117.59/319,611.70
  6. Step 6: Final answer
    x = 243,399.43

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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.