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Finding the Fourth Proportional to 159,107.96, 219,514.35 and 98,656.85

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Solution

The fourth proportional to 159,107.96, 219,514.35 and 98,656.85 is: 136,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,107.96 : 219,514.35 = 98,656.85 : x
  2. Step 2: Convert to fraction form
    159,107.96/219,514.35 = 98,656.85/x
  3. Step 3: Cross multiply
    159,107.96x = 219,514.35 × 98,656.85
  4. Step 4: Simplify right side
    159,107.96x = 21,656,595,219.55
  5. Step 5: Solve for x
    x = 21,656,595,219.55/159,107.96
  6. Step 6: Final answer
    x = 136,112.58

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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.