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Finding the Fourth Proportional to 319,586.88, 441,011.28 and 176,346.60

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Solution

The fourth proportional to 319,586.88, 441,011.28 and 176,346.60 is: 243,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,586.88 : 441,011.28 = 176,346.60 : x
  2. Step 2: Convert to fraction form
    319,586.88/441,011.28 = 176,346.60/x
  3. Step 3: Cross multiply
    319,586.88x = 441,011.28 × 176,346.60
  4. Step 4: Simplify right side
    319,586.88x = 77,770,839,789.65
  5. Step 5: Solve for x
    x = 77,770,839,789.65/319,586.88
  6. Step 6: Final answer
    x = 243,348.04

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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.