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Finding the Fourth Proportional to 355,225.70, 490,205.73 and 194,077.28

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Solution

The fourth proportional to 355,225.70, 490,205.73 and 194,077.28 is: 267,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,225.70 : 490,205.73 = 194,077.28 : x
  2. Step 2: Convert to fraction form
    355,225.70/490,205.73 = 194,077.28/x
  3. Step 3: Cross multiply
    355,225.70x = 490,205.73 × 194,077.28
  4. Step 4: Simplify right side
    355,225.70x = 95,137,794,718.81
  5. Step 5: Solve for x
    x = 95,137,794,718.81/355,225.70
  6. Step 6: Final answer
    x = 267,823.51

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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.