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Finding the Fourth Proportional to 241,086.72, 361,636.74 and 91,299.06

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Solution

The fourth proportional to 241,086.72, 361,636.74 and 91,299.06 is: 136,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,086.72 : 361,636.74 = 91,299.06 : x
  2. Step 2: Convert to fraction form
    241,086.72/361,636.74 = 91,299.06/x
  3. Step 3: Cross multiply
    241,086.72x = 361,636.74 × 91,299.06
  4. Step 4: Simplify right side
    241,086.72x = 33,017,094,423.46
  5. Step 5: Solve for x
    x = 33,017,094,423.46/241,086.72
  6. Step 6: Final answer
    x = 136,951.11

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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.