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Finding the Fourth Proportional to 196,842.87, 294,820.38 and 91,440.03

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Solution

The fourth proportional to 196,842.87, 294,820.38 and 91,440.03 is: 136,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,842.87 : 294,820.38 = 91,440.03 : x
  2. Step 2: Convert to fraction form
    196,842.87/294,820.38 = 91,440.03/x
  3. Step 3: Cross multiply
    196,842.87x = 294,820.38 × 91,440.03
  4. Step 4: Simplify right side
    196,842.87x = 26,958,384,391.81
  5. Step 5: Solve for x
    x = 26,958,384,391.81/196,842.87
  6. Step 6: Final answer
    x = 136,953.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.