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Finding the Fourth Proportional to 235,714.66, 325,229.48 and 138,922.36

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Solution

The fourth proportional to 235,714.66, 325,229.48 and 138,922.36 is: 191,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,714.66 : 325,229.48 = 138,922.36 : x
  2. Step 2: Convert to fraction form
    235,714.66/325,229.48 = 138,922.36/x
  3. Step 3: Cross multiply
    235,714.66x = 325,229.48 × 138,922.36
  4. Step 4: Simplify right side
    235,714.66x = 45,181,645,916.45
  5. Step 5: Solve for x
    x = 45,181,645,916.45/235,714.66
  6. Step 6: Final answer
    x = 191,679.41

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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.