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Finding the Fourth Proportional to 157,351.44, 217,137.48 and 89,359.44

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Solution

The fourth proportional to 157,351.44, 217,137.48 and 89,359.44 is: 123,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,351.44 : 217,137.48 = 89,359.44 : x
  2. Step 2: Convert to fraction form
    157,351.44/217,137.48 = 89,359.44/x
  3. Step 3: Cross multiply
    157,351.44x = 217,137.48 × 89,359.44
  4. Step 4: Simplify right side
    157,351.44x = 19,403,283,615.81
  5. Step 5: Solve for x
    x = 19,403,283,615.81/157,351.44
  6. Step 6: Final answer
    x = 123,311.76

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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.