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Finding the Fourth Proportional to 319,924.55, 441,695.56 and 203,703.61

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Solution

The fourth proportional to 319,924.55, 441,695.56 and 203,703.61 is: 281,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,924.55 : 441,695.56 = 203,703.61 : x
  2. Step 2: Convert to fraction form
    319,924.55/441,695.56 = 203,703.61/x
  3. Step 3: Cross multiply
    319,924.55x = 441,695.56 × 203,703.61
  4. Step 4: Simplify right side
    319,924.55x = 89,974,979,116.68
  5. Step 5: Solve for x
    x = 89,974,979,116.68/319,924.55
  6. Step 6: Final answer
    x = 281,238.12

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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.