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Finding the Fourth Proportional to 293,315.84, 404,781.92 and 165,991.40

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Solution

The fourth proportional to 293,315.84, 404,781.92 and 165,991.40 is: 229,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,315.84 : 404,781.92 = 165,991.40 : x
  2. Step 2: Convert to fraction form
    293,315.84/404,781.92 = 165,991.40/x
  3. Step 3: Cross multiply
    293,315.84x = 404,781.92 × 165,991.40
  4. Step 4: Simplify right side
    293,315.84x = 67,190,317,595.49
  5. Step 5: Solve for x
    x = 67,190,317,595.49/293,315.84
  6. Step 6: Final answer
    x = 229,071.56

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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.