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Finding the Fourth Proportional to 158,958.45, 219,556.58 and 118,849.78

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Solution

The fourth proportional to 158,958.45, 219,556.58 and 118,849.78 is: 164,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,958.45 : 219,556.58 = 118,849.78 : x
  2. Step 2: Convert to fraction form
    158,958.45/219,556.58 = 118,849.78/x
  3. Step 3: Cross multiply
    158,958.45x = 219,556.58 × 118,849.78
  4. Step 4: Simplify right side
    158,958.45x = 26,094,250,910.75
  5. Step 5: Solve for x
    x = 26,094,250,910.75/158,958.45
  6. Step 6: Final answer
    x = 164,157.68

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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.