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Finding the Fourth Proportional to 171,770.68, 257,393.26 and 91,820.02

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Solution

The fourth proportional to 171,770.68, 257,393.26 and 91,820.02 is: 137,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,770.68 : 257,393.26 = 91,820.02 : x
  2. Step 2: Convert to fraction form
    171,770.68/257,393.26 = 91,820.02/x
  3. Step 3: Cross multiply
    171,770.68x = 257,393.26 × 91,820.02
  4. Step 4: Simplify right side
    171,770.68x = 23,633,854,281.07
  5. Step 5: Solve for x
    x = 23,633,854,281.07/171,770.68
  6. Step 6: Final answer
    x = 137,589.57

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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.