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Finding the Fourth Proportional to 253,064.54, 379,589.42 and 66,076.04

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Solution

The fourth proportional to 253,064.54, 379,589.42 and 66,076.04 is: 99,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,064.54 : 379,589.42 = 66,076.04 : x
  2. Step 2: Convert to fraction form
    253,064.54/379,589.42 = 66,076.04/x
  3. Step 3: Cross multiply
    253,064.54x = 379,589.42 × 66,076.04
  4. Step 4: Simplify right side
    253,064.54x = 25,081,765,699.50
  5. Step 5: Solve for x
    x = 25,081,765,699.50/253,064.54
  6. Step 6: Final answer
    x = 99,112.13

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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.