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Finding the Fourth Proportional to 102,998.80, 154,498.20 and 32,885.20

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Solution

The fourth proportional to 102,998.80, 154,498.20 and 32,885.20 is: 49,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,998.80 : 154,498.20 = 32,885.20 : x
  2. Step 2: Convert to fraction form
    102,998.80/154,498.20 = 32,885.20/x
  3. Step 3: Cross multiply
    102,998.80x = 154,498.20 × 32,885.20
  4. Step 4: Simplify right side
    102,998.80x = 5,080,704,206.64
  5. Step 5: Solve for x
    x = 5,080,704,206.64/102,998.80
  6. Step 6: Final answer
    x = 49,327.80

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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.