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Finding the Fourth Proportional to 339,952.72, 469,143.59 and 186,994.85

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Solution

The fourth proportional to 339,952.72, 469,143.59 and 186,994.85 is: 258,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,952.72 : 469,143.59 = 186,994.85 : x
  2. Step 2: Convert to fraction form
    339,952.72/469,143.59 = 186,994.85/x
  3. Step 3: Cross multiply
    339,952.72x = 469,143.59 × 186,994.85
  4. Step 4: Simplify right side
    339,952.72x = 87,727,435,240.51
  5. Step 5: Solve for x
    x = 87,727,435,240.51/339,952.72
  6. Step 6: Final answer
    x = 258,057.75

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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.