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Finding the Fourth Proportional to 74,035.80, 110,980.80 and 36,601.65

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Solution

The fourth proportional to 74,035.80, 110,980.80 and 36,601.65 is: 54,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,035.80 : 110,980.80 = 36,601.65 : x
  2. Step 2: Convert to fraction form
    74,035.80/110,980.80 = 36,601.65/x
  3. Step 3: Cross multiply
    74,035.80x = 110,980.80 × 36,601.65
  4. Step 4: Simplify right side
    74,035.80x = 4,062,080,398.32
  5. Step 5: Solve for x
    x = 4,062,080,398.32/74,035.80
  6. Step 6: Final answer
    x = 54,866.43

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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.