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Finding the Fourth Proportional to 214,598.81, 321,955.63 and 74,357.44

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Solution

The fourth proportional to 214,598.81, 321,955.63 and 74,357.44 is: 111,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,598.81 : 321,955.63 = 74,357.44 : x
  2. Step 2: Convert to fraction form
    214,598.81/321,955.63 = 74,357.44/x
  3. Step 3: Cross multiply
    214,598.81x = 321,955.63 × 74,357.44
  4. Step 4: Simplify right side
    214,598.81x = 23,939,795,449.60
  5. Step 5: Solve for x
    x = 23,939,795,449.60/214,598.81
  6. Step 6: Final answer
    x = 111,556.05

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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.