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Finding the Fourth Proportional to 183,539.52, 253,016.46 and 129,729.60

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Solution

The fourth proportional to 183,539.52, 253,016.46 and 129,729.60 is: 178,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,539.52 : 253,016.46 = 129,729.60 : x
  2. Step 2: Convert to fraction form
    183,539.52/253,016.46 = 129,729.60/x
  3. Step 3: Cross multiply
    183,539.52x = 253,016.46 × 129,729.60
  4. Step 4: Simplify right side
    183,539.52x = 32,823,724,149.22
  5. Step 5: Solve for x
    x = 32,823,724,149.22/183,539.52
  6. Step 6: Final answer
    x = 178,837.37

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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.