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Finding the Fourth Proportional to 355,615.92, 490,748.22 and 194,468.04

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Solution

The fourth proportional to 355,615.92, 490,748.22 and 194,468.04 is: 268,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,615.92 : 490,748.22 = 194,468.04 : x
  2. Step 2: Convert to fraction form
    355,615.92/490,748.22 = 194,468.04/x
  3. Step 3: Cross multiply
    355,615.92x = 490,748.22 × 194,468.04
  4. Step 4: Simplify right side
    355,615.92x = 95,434,844,476.89
  5. Step 5: Solve for x
    x = 95,434,844,476.89/355,615.92
  6. Step 6: Final answer
    x = 268,364.94

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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.