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Finding the Fourth Proportional to 343,305.99, 515,070.77 and 165,833.37

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Solution

The fourth proportional to 343,305.99, 515,070.77 and 165,833.37 is: 248,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,305.99 : 515,070.77 = 165,833.37 : x
  2. Step 2: Convert to fraction form
    343,305.99/515,070.77 = 165,833.37/x
  3. Step 3: Cross multiply
    343,305.99x = 515,070.77 × 165,833.37
  4. Step 4: Simplify right side
    343,305.99x = 85,415,920,748.43
  5. Step 5: Solve for x
    x = 85,415,920,748.43/343,305.99
  6. Step 6: Final answer
    x = 248,804.05

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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.