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Finding the Fourth Proportional to 253,679.44, 350,080.20 and 153,058

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Solution

The fourth proportional to 253,679.44, 350,080.20 and 153,058 is: 211,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,679.44 : 350,080.20 = 153,058 : x
  2. Step 2: Convert to fraction form
    253,679.44/350,080.20 = 153,058/x
  3. Step 3: Cross multiply
    253,679.44x = 350,080.20 × 153,058
  4. Step 4: Simplify right side
    253,679.44x = 53,582,575,251.60
  5. Step 5: Solve for x
    x = 53,582,575,251.60/253,679.44
  6. Step 6: Final answer
    x = 211,221.59

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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.