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Finding the Fourth Proportional to 171,994.86, 257,925.87 and 66,799.62

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Solution

The fourth proportional to 171,994.86, 257,925.87 and 66,799.62 is: 100,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,994.86 : 257,925.87 = 66,799.62 : x
  2. Step 2: Convert to fraction form
    171,994.86/257,925.87 = 66,799.62/x
  3. Step 3: Cross multiply
    171,994.86x = 257,925.87 × 66,799.62
  4. Step 4: Simplify right side
    171,994.86x = 17,229,350,104.17
  5. Step 5: Solve for x
    x = 17,229,350,104.17/171,994.86
  6. Step 6: Final answer
    x = 100,173.63

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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.