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Finding the Fourth Proportional to 172,853.44, 238,553.41 and 104,887.63

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Solution

The fourth proportional to 172,853.44, 238,553.41 and 104,887.63 is: 144,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,853.44 : 238,553.41 = 104,887.63 : x
  2. Step 2: Convert to fraction form
    172,853.44/238,553.41 = 104,887.63/x
  3. Step 3: Cross multiply
    172,853.44x = 238,553.41 × 104,887.63
  4. Step 4: Simplify right side
    172,853.44x = 25,021,301,242.91
  5. Step 5: Solve for x
    x = 25,021,301,242.91/172,853.44
  6. Step 6: Final answer
    x = 144,754.43

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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.