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Finding the Fourth Proportional to 355,903.96, 491,147.51 and 194,759.04

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Solution

The fourth proportional to 355,903.96, 491,147.51 and 194,759.04 is: 268,767.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,903.96 : 491,147.51 = 194,759.04 : x
  2. Step 2: Convert to fraction form
    355,903.96/491,147.51 = 194,759.04/x
  3. Step 3: Cross multiply
    355,903.96x = 491,147.51 × 194,759.04
  4. Step 4: Simplify right side
    355,903.96x = 95,655,417,545.99
  5. Step 5: Solve for x
    x = 95,655,417,545.99/355,903.96
  6. Step 6: Final answer
    x = 268,767.50

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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.