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Finding the Fourth Proportional to 343,549.88, 515,327.56 and 141,093.82

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Solution

The fourth proportional to 343,549.88, 515,327.56 and 141,093.82 is: 211,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,549.88 : 515,327.56 = 141,093.82 : x
  2. Step 2: Convert to fraction form
    343,549.88/515,327.56 = 141,093.82/x
  3. Step 3: Cross multiply
    343,549.88x = 515,327.56 × 141,093.82
  4. Step 4: Simplify right side
    343,549.88x = 72,709,536,129.29
  5. Step 5: Solve for x
    x = 72,709,536,129.29/343,549.88
  6. Step 6: Final answer
    x = 211,641.86

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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.