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Finding the Fourth Proportional to 171,630.20, 257,445.30 and 159,188.60

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Solution

The fourth proportional to 171,630.20, 257,445.30 and 159,188.60 is: 238,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,630.20 : 257,445.30 = 159,188.60 : x
  2. Step 2: Convert to fraction form
    171,630.20/257,445.30 = 159,188.60/x
  3. Step 3: Cross multiply
    171,630.20x = 257,445.30 × 159,188.60
  4. Step 4: Simplify right side
    171,630.20x = 40,982,356,883.58
  5. Step 5: Solve for x
    x = 40,982,356,883.58/171,630.20
  6. Step 6: Final answer
    x = 238,782.90

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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.