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Finding the Fourth Proportional to 174,739.74, 262,109.88 and 74,892.12

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Solution

The fourth proportional to 174,739.74, 262,109.88 and 74,892.12 is: 112,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,739.74 : 262,109.88 = 74,892.12 : x
  2. Step 2: Convert to fraction form
    174,739.74/262,109.88 = 74,892.12/x
  3. Step 3: Cross multiply
    174,739.74x = 262,109.88 × 74,892.12
  4. Step 4: Simplify right side
    174,739.74x = 19,629,964,586.15
  5. Step 5: Solve for x
    x = 19,629,964,586.15/174,739.74
  6. Step 6: Final answer
    x = 112,338.30

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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.