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Finding the Fourth Proportional to 171,612.60, 257,591.70 and 82,937.40

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Solution

The fourth proportional to 171,612.60, 257,591.70 and 82,937.40 is: 124,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,612.60 : 257,591.70 = 82,937.40 : x
  2. Step 2: Convert to fraction form
    171,612.60/257,591.70 = 82,937.40/x
  3. Step 3: Cross multiply
    171,612.60x = 257,591.70 × 82,937.40
  4. Step 4: Simplify right side
    171,612.60x = 21,363,985,859.58
  5. Step 5: Solve for x
    x = 21,363,985,859.58/171,612.60
  6. Step 6: Final answer
    x = 124,489.61

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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.