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Finding the Fourth Proportional to 79,682.85, 119,486.16 and 46,412.42

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Solution

The fourth proportional to 79,682.85, 119,486.16 and 46,412.42 is: 69,596.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682.85 : 119,486.16 = 46,412.42 : x
  2. Step 2: Convert to fraction form
    79,682.85/119,486.16 = 46,412.42/x
  3. Step 3: Cross multiply
    79,682.85x = 119,486.16 × 46,412.42
  4. Step 4: Simplify right side
    79,682.85x = 5,545,641,244.68
  5. Step 5: Solve for x
    x = 5,545,641,244.68/79,682.85
  6. Step 6: Final answer
    x = 69,596.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.