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Finding the Fourth Proportional to 171,170.34, 256,755.30 and 65,915.49

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Solution

The fourth proportional to 171,170.34, 256,755.30 and 65,915.49 is: 98,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,170.34 : 256,755.30 = 65,915.49 : x
  2. Step 2: Convert to fraction form
    171,170.34/256,755.30 = 65,915.49/x
  3. Step 3: Cross multiply
    171,170.34x = 256,755.30 × 65,915.49
  4. Step 4: Simplify right side
    171,170.34x = 16,924,151,409.60
  5. Step 5: Solve for x
    x = 16,924,151,409.60/171,170.34
  6. Step 6: Final answer
    x = 98,873.15

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1.5x scale

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.