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Finding the Fourth Proportional to 104,754.60, 157,072.32 and 71,514.72

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Solution

The fourth proportional to 104,754.60, 157,072.32 and 71,514.72 is: 107,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,754.60 : 157,072.32 = 71,514.72 : x
  2. Step 2: Convert to fraction form
    104,754.60/157,072.32 = 71,514.72/x
  3. Step 3: Cross multiply
    104,754.60x = 157,072.32 × 71,514.72
  4. Step 4: Simplify right side
    104,754.60x = 11,232,982,984.55
  5. Step 5: Solve for x
    x = 11,232,982,984.55/104,754.60
  6. Step 6: Final answer
    x = 107,231.41

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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.