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Finding the Fourth Proportional to 171,996.60, 257,994.90 and 88,015.80

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Solution

The fourth proportional to 171,996.60, 257,994.90 and 88,015.80 is: 132,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,996.60 : 257,994.90 = 88,015.80 : x
  2. Step 2: Convert to fraction form
    171,996.60/257,994.90 = 88,015.80/x
  3. Step 3: Cross multiply
    171,996.60x = 257,994.90 × 88,015.80
  4. Step 4: Simplify right side
    171,996.60x = 22,707,627,519.42
  5. Step 5: Solve for x
    x = 22,707,627,519.42/171,996.60
  6. Step 6: Final answer
    x = 132,023.70

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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.