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Finding the Fourth Proportional to 316,731.84, 437,093.73 and 173,497.92

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Solution

The fourth proportional to 316,731.84, 437,093.73 and 173,497.92 is: 239,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,731.84 : 437,093.73 = 173,497.92 : x
  2. Step 2: Convert to fraction form
    316,731.84/437,093.73 = 173,497.92/x
  3. Step 3: Cross multiply
    316,731.84x = 437,093.73 × 173,497.92
  4. Step 4: Simplify right side
    316,731.84x = 75,834,853,000.04
  5. Step 5: Solve for x
    x = 75,834,853,000.04/316,731.84
  6. Step 6: Final answer
    x = 239,429.21

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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.