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Finding the Fourth Proportional to 191,786.13, 287,668.85 and 58,666.41

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Solution

The fourth proportional to 191,786.13, 287,668.85 and 58,666.41 is: 87,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,786.13 : 287,668.85 = 58,666.41 : x
  2. Step 2: Convert to fraction form
    191,786.13/287,668.85 = 58,666.41/x
  3. Step 3: Cross multiply
    191,786.13x = 287,668.85 × 58,666.41
  4. Step 4: Simplify right side
    191,786.13x = 16,876,497,326.24
  5. Step 5: Solve for x
    x = 16,876,497,326.24/191,786.13
  6. Step 6: Final answer
    x = 87,996.44

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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.