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Finding the Fourth Proportional to 171,612.98, 257,418.66 and 43,529.30

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Solution

The fourth proportional to 171,612.98, 257,418.66 and 43,529.30 is: 65,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,612.98 : 257,418.66 = 43,529.30 : x
  2. Step 2: Convert to fraction form
    171,612.98/257,418.66 = 43,529.30/x
  3. Step 3: Cross multiply
    171,612.98x = 257,418.66 × 43,529.30
  4. Step 4: Simplify right side
    171,612.98x = 11,205,254,076.74
  5. Step 5: Solve for x
    x = 11,205,254,076.74/171,612.98
  6. Step 6: Final answer
    x = 65,293.74

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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.