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Finding the Fourth Proportional to 171,262.80, 256,505.40 and 88,059.60

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Solution

The fourth proportional to 171,262.80, 256,505.40 and 88,059.60 is: 131,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,262.80 : 256,505.40 = 88,059.60 : x
  2. Step 2: Convert to fraction form
    171,262.80/256,505.40 = 88,059.60/x
  3. Step 3: Cross multiply
    171,262.80x = 256,505.40 × 88,059.60
  4. Step 4: Simplify right side
    171,262.80x = 22,587,762,921.84
  5. Step 5: Solve for x
    x = 22,587,762,921.84/171,262.80
  6. Step 6: Final answer
    x = 131,889.49

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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.