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Finding the Fourth Proportional to 171,772.68, 257,396.26 and 91,822.02

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Solution

The fourth proportional to 171,772.68, 257,396.26 and 91,822.02 is: 137,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,772.68 : 257,396.26 = 91,822.02 : x
  2. Step 2: Convert to fraction form
    171,772.68/257,396.26 = 91,822.02/x
  3. Step 3: Cross multiply
    171,772.68x = 257,396.26 × 91,822.02
  4. Step 4: Simplify right side
    171,772.68x = 23,634,644,533.65
  5. Step 5: Solve for x
    x = 23,634,644,533.65/171,772.68
  6. Step 6: Final answer
    x = 137,592.57

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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.