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Finding the Fourth Proportional to 355,390.52, 490,452.10 and 194,256.41

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Solution

The fourth proportional to 355,390.52, 490,452.10 and 194,256.41 is: 268,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,390.52 : 490,452.10 = 194,256.41 : x
  2. Step 2: Convert to fraction form
    355,390.52/490,452.10 = 194,256.41/x
  3. Step 3: Cross multiply
    355,390.52x = 490,452.10 × 194,256.41
  4. Step 4: Simplify right side
    355,390.52x = 95,273,461,285.06
  5. Step 5: Solve for x
    x = 95,273,461,285.06/355,390.52
  6. Step 6: Final answer
    x = 268,081.05

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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.