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Finding the Fourth Proportional to 339,813.85, 468,956.62 and 186,864.58

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Solution

The fourth proportional to 339,813.85, 468,956.62 and 186,864.58 is: 257,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,813.85 : 468,956.62 = 186,864.58 : x
  2. Step 2: Convert to fraction form
    339,813.85/468,956.62 = 186,864.58/x
  3. Step 3: Cross multiply
    339,813.85x = 468,956.62 × 186,864.58
  4. Step 4: Simplify right side
    339,813.85x = 87,631,381,834.52
  5. Step 5: Solve for x
    x = 87,631,381,834.52/339,813.85
  6. Step 6: Final answer
    x = 257,880.55

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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.