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Finding the Fourth Proportional to 173,147.60, 259,915.80 and 133,878.80

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Solution

The fourth proportional to 173,147.60, 259,915.80 and 133,878.80 is: 200,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,147.60 : 259,915.80 = 133,878.80 : x
  2. Step 2: Convert to fraction form
    173,147.60/259,915.80 = 133,878.80/x
  3. Step 3: Cross multiply
    173,147.60x = 259,915.80 × 133,878.80
  4. Step 4: Simplify right side
    173,147.60x = 34,797,215,405.04
  5. Step 5: Solve for x
    x = 34,797,215,405.04/173,147.60
  6. Step 6: Final answer
    x = 200,968.51

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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.