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Finding the Fourth Proportional to 347,235.65, 479,182.61 and 196,338.05

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Solution

The fourth proportional to 347,235.65, 479,182.61 and 196,338.05 is: 270,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,235.65 : 479,182.61 = 196,338.05 : x
  2. Step 2: Convert to fraction form
    347,235.65/479,182.61 = 196,338.05/x
  3. Step 3: Cross multiply
    347,235.65x = 479,182.61 × 196,338.05
  4. Step 4: Simplify right side
    347,235.65x = 94,081,778,259.62
  5. Step 5: Solve for x
    x = 94,081,778,259.62/347,235.65
  6. Step 6: Final answer
    x = 270,945.04

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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.