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Finding the Fourth Proportional to 339,878.48, 469,022.94 and 186,916.67

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Solution

The fourth proportional to 339,878.48, 469,022.94 and 186,916.67 is: 257,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,878.48 : 469,022.94 = 186,916.67 : x
  2. Step 2: Convert to fraction form
    339,878.48/469,022.94 = 186,916.67/x
  3. Step 3: Cross multiply
    339,878.48x = 469,022.94 × 186,916.67
  4. Step 4: Simplify right side
    339,878.48x = 87,668,207,270.97
  5. Step 5: Solve for x
    x = 87,668,207,270.97/339,878.48
  6. Step 6: Final answer
    x = 257,939.86

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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.