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Finding the Fourth Proportional to 171,074.40, 256,611.60 and 164,513.40

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Solution

The fourth proportional to 171,074.40, 256,611.60 and 164,513.40 is: 246,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,074.40 : 256,611.60 = 164,513.40 : x
  2. Step 2: Convert to fraction form
    171,074.40/256,611.60 = 164,513.40/x
  3. Step 3: Cross multiply
    171,074.40x = 256,611.60 × 164,513.40
  4. Step 4: Simplify right side
    171,074.40x = 42,216,046,795.44
  5. Step 5: Solve for x
    x = 42,216,046,795.44/171,074.40
  6. Step 6: Final answer
    x = 246,770.10

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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.