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Finding the Fourth Proportional to 196,611.84, 294,750.72 and 91,491.84

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Solution

The fourth proportional to 196,611.84, 294,750.72 and 91,491.84 is: 137,160.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,611.84 : 294,750.72 = 91,491.84 : x
  2. Step 2: Convert to fraction form
    196,611.84/294,750.72 = 91,491.84/x
  3. Step 3: Cross multiply
    196,611.84x = 294,750.72 × 91,491.84
  4. Step 4: Simplify right side
    196,611.84x = 26,967,285,714.12
  5. Step 5: Solve for x
    x = 26,967,285,714.12/196,611.84
  6. Step 6: Final answer
    x = 137,160.03

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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.