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Finding the Fourth Proportional to 270,093.60, 372,719.64 and 149,232.72

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Solution

The fourth proportional to 270,093.60, 372,719.64 and 149,232.72 is: 205,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,093.60 : 372,719.64 = 149,232.72 : x
  2. Step 2: Convert to fraction form
    270,093.60/372,719.64 = 149,232.72/x
  3. Step 3: Cross multiply
    270,093.60x = 372,719.64 × 149,232.72
  4. Step 4: Simplify right side
    270,093.60x = 55,621,965,674.62
  5. Step 5: Solve for x
    x = 55,621,965,674.62/270,093.60
  6. Step 6: Final answer
    x = 205,935.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.