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Finding the Fourth Proportional to 140,791.61, 211,169.79 and 46,013.87

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Solution

The fourth proportional to 140,791.61, 211,169.79 and 46,013.87 is: 69,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,791.61 : 211,169.79 = 46,013.87 : x
  2. Step 2: Convert to fraction form
    140,791.61/211,169.79 = 46,013.87/x
  3. Step 3: Cross multiply
    140,791.61x = 211,169.79 × 46,013.87
  4. Step 4: Simplify right side
    140,791.61x = 9,716,738,209.14
  5. Step 5: Solve for x
    x = 9,716,738,209.14/140,791.61
  6. Step 6: Final answer
    x = 69,015.04

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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.