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Finding the Fourth Proportional to 372,379.26, 558,131.49 and 172,276.96

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Solution

The fourth proportional to 372,379.26, 558,131.49 and 172,276.96 is: 258,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,379.26 : 558,131.49 = 172,276.96 : x
  2. Step 2: Convert to fraction form
    372,379.26/558,131.49 = 172,276.96/x
  3. Step 3: Cross multiply
    372,379.26x = 558,131.49 × 172,276.96
  4. Step 4: Simplify right side
    372,379.26x = 96,153,196,377.47
  5. Step 5: Solve for x
    x = 96,153,196,377.47/372,379.26
  6. Step 6: Final answer
    x = 258,213.08

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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.