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Finding the Fourth Proportional to 339,788.61, 468,920.33 and 186,838.45

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Solution

The fourth proportional to 339,788.61, 468,920.33 and 186,838.45 is: 257,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,788.61 : 468,920.33 = 186,838.45 : x
  2. Step 2: Convert to fraction form
    339,788.61/468,920.33 = 186,838.45/x
  3. Step 3: Cross multiply
    339,788.61x = 468,920.33 × 186,838.45
  4. Step 4: Simplify right side
    339,788.61x = 87,612,345,962.10
  5. Step 5: Solve for x
    x = 87,612,345,962.10/339,788.61
  6. Step 6: Final answer
    x = 257,843.68

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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.