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Finding the Fourth Proportional to 279,950.94, 386,380.19 and 194,034.65

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Solution

The fourth proportional to 279,950.94, 386,380.19 and 194,034.65 is: 267,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,950.94 : 386,380.19 = 194,034.65 : x
  2. Step 2: Convert to fraction form
    279,950.94/386,380.19 = 194,034.65/x
  3. Step 3: Cross multiply
    279,950.94x = 386,380.19 × 194,034.65
  4. Step 4: Simplify right side
    279,950.94x = 74,971,143,486.77
  5. Step 5: Solve for x
    x = 74,971,143,486.77/279,950.94
  6. Step 6: Final answer
    x = 267,801.01

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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.