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Finding the Fourth Proportional to 292,868.78, 404,157.75 and 163,807.43

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Solution

The fourth proportional to 292,868.78, 404,157.75 and 163,807.43 is: 226,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,868.78 : 404,157.75 = 163,807.43 : x
  2. Step 2: Convert to fraction form
    292,868.78/404,157.75 = 163,807.43/x
  3. Step 3: Cross multiply
    292,868.78x = 404,157.75 × 163,807.43
  4. Step 4: Simplify right side
    292,868.78x = 66,204,042,342.08
  5. Step 5: Solve for x
    x = 66,204,042,342.08/292,868.78
  6. Step 6: Final answer
    x = 226,053.60

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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.