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Finding the Fourth Proportional to 292,959.43, 404,287.18 and 172,105.81

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Solution

The fourth proportional to 292,959.43, 404,287.18 and 172,105.81 is: 237,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,959.43 : 404,287.18 = 172,105.81 : x
  2. Step 2: Convert to fraction form
    292,959.43/404,287.18 = 172,105.81/x
  3. Step 3: Cross multiply
    292,959.43x = 404,287.18 × 172,105.81
  4. Step 4: Simplify right side
    292,959.43x = 69,580,172,586.52
  5. Step 5: Solve for x
    x = 69,580,172,586.52/292,959.43
  6. Step 6: Final answer
    x = 237,507.88

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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.