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Finding the Fourth Proportional to 159,794.64, 220,514.96 and 88,175.28

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Solution

The fourth proportional to 159,794.64, 220,514.96 and 88,175.28 is: 121,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,794.64 : 220,514.96 = 88,175.28 : x
  2. Step 2: Convert to fraction form
    159,794.64/220,514.96 = 88,175.28/x
  3. Step 3: Cross multiply
    159,794.64x = 220,514.96 × 88,175.28
  4. Step 4: Simplify right side
    159,794.64x = 19,443,968,342.19
  5. Step 5: Solve for x
    x = 19,443,968,342.19/159,794.64
  6. Step 6: Final answer
    x = 121,680.98

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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.