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Finding the Fourth Proportional to 107,990.40, 161,980.44 and 37,864.38

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Solution

The fourth proportional to 107,990.40, 161,980.44 and 37,864.38 is: 56,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,990.40 : 161,980.44 = 37,864.38 : x
  2. Step 2: Convert to fraction form
    107,990.40/161,980.44 = 37,864.38/x
  3. Step 3: Cross multiply
    107,990.40x = 161,980.44 × 37,864.38
  4. Step 4: Simplify right side
    107,990.40x = 6,133,288,932.73
  5. Step 5: Solve for x
    x = 6,133,288,932.73/107,990.40
  6. Step 6: Final answer
    x = 56,794.76

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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.