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Finding the Fourth Proportional to 292,958.43, 404,285.80 and 172,104.81

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Solution

The fourth proportional to 292,958.43, 404,285.80 and 172,104.81 is: 237,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,958.43 : 404,285.80 = 172,104.81 : x
  2. Step 2: Convert to fraction form
    292,958.43/404,285.80 = 172,104.81/x
  3. Step 3: Cross multiply
    292,958.43x = 404,285.80 × 172,104.81
  4. Step 4: Simplify right side
    292,958.43x = 69,579,530,794.70
  5. Step 5: Solve for x
    x = 69,579,530,794.70/292,958.43
  6. Step 6: Final answer
    x = 237,506.50

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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.