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Finding the Fourth Proportional to 319,958.94, 441,505.56 and 176,710.44

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Solution

The fourth proportional to 319,958.94, 441,505.56 and 176,710.44 is: 243,839.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,958.94 : 441,505.56 = 176,710.44 : x
  2. Step 2: Convert to fraction form
    319,958.94/441,505.56 = 176,710.44/x
  3. Step 3: Cross multiply
    319,958.94x = 441,505.56 × 176,710.44
  4. Step 4: Simplify right side
    319,958.94x = 78,018,641,770.05
  5. Step 5: Solve for x
    x = 78,018,641,770.05/319,958.94
  6. Step 6: Final answer
    x = 243,839.54

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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.