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Finding the Fourth Proportional to 292,867.78, 404,156.37 and 163,806.43

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Solution

The fourth proportional to 292,867.78, 404,156.37 and 163,806.43 is: 226,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,867.78 : 404,156.37 = 163,806.43 : x
  2. Step 2: Convert to fraction form
    292,867.78/404,156.37 = 163,806.43/x
  3. Step 3: Cross multiply
    292,867.78x = 404,156.37 × 163,806.43
  4. Step 4: Simplify right side
    292,867.78x = 66,203,412,131.46
  5. Step 5: Solve for x
    x = 66,203,412,131.46/292,867.78
  6. Step 6: Final answer
    x = 226,052.22

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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.