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Finding the Fourth Proportional to 292,872.88, 404,164.92 and 158,736.88

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Solution

The fourth proportional to 292,872.88, 404,164.92 and 158,736.88 is: 219,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,872.88 : 404,164.92 = 158,736.88 : x
  2. Step 2: Convert to fraction form
    292,872.88/404,164.92 = 158,736.88/x
  3. Step 3: Cross multiply
    292,872.88x = 404,164.92 × 158,736.88
  4. Step 4: Simplify right side
    292,872.88x = 64,155,878,406.25
  5. Step 5: Solve for x
    x = 64,155,878,406.25/292,872.88
  6. Step 6: Final answer
    x = 219,057.08

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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.