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Finding the Fourth Proportional to 319,956.71, 441,502.44 and 176,708.21

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Solution

The fourth proportional to 319,956.71, 441,502.44 and 176,708.21 is: 243,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,956.71 : 441,502.44 = 176,708.21 : x
  2. Step 2: Convert to fraction form
    319,956.71/441,502.44 = 176,708.21/x
  3. Step 3: Cross multiply
    319,956.71x = 441,502.44 × 176,708.21
  4. Step 4: Simplify right side
    319,956.71x = 78,017,103,675.52
  5. Step 5: Solve for x
    x = 78,017,103,675.52/319,956.71
  6. Step 6: Final answer
    x = 243,836.44

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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.