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Finding the Fourth Proportional to 342,086.94, 471,583.35 and 239,793.66

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Solution

The fourth proportional to 342,086.94, 471,583.35 and 239,793.66 is: 330,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,086.94 : 471,583.35 = 239,793.66 : x
  2. Step 2: Convert to fraction form
    342,086.94/471,583.35 = 239,793.66/x
  3. Step 3: Cross multiply
    342,086.94x = 471,583.35 × 239,793.66
  4. Step 4: Simplify right side
    342,086.94x = 113,082,697,491.56
  5. Step 5: Solve for x
    x = 113,082,697,491.56/342,086.94
  6. Step 6: Final answer
    x = 330,567.13

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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.