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Finding the Fourth Proportional to 343,543.26, 515,073.46 and 151,326.48

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Solution

The fourth proportional to 343,543.26, 515,073.46 and 151,326.48 is: 226,883.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,543.26 : 515,073.46 = 151,326.48 : x
  2. Step 2: Convert to fraction form
    343,543.26/515,073.46 = 151,326.48/x
  3. Step 3: Cross multiply
    343,543.26x = 515,073.46 × 151,326.48
  4. Step 4: Simplify right side
    343,543.26x = 77,944,253,643.22
  5. Step 5: Solve for x
    x = 77,944,253,643.22/343,543.26
  6. Step 6: Final answer
    x = 226,883.37

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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.