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Finding the Fourth Proportional to 445,101.56, 667,708.93 and 141,387.37

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Solution

The fourth proportional to 445,101.56, 667,708.93 and 141,387.37 is: 212,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,101.56 : 667,708.93 = 141,387.37 : x
  2. Step 2: Convert to fraction form
    445,101.56/667,708.93 = 141,387.37/x
  3. Step 3: Cross multiply
    445,101.56x = 667,708.93 × 141,387.37
  4. Step 4: Simplify right side
    445,101.56x = 94,405,609,538.21
  5. Step 5: Solve for x
    x = 94,405,609,538.21/445,101.56
  6. Step 6: Final answer
    x = 212,099.03

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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.