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Finding the Fourth Proportional to 319,003.68, 440,221.56 and 183,059.01

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Solution

The fourth proportional to 319,003.68, 440,221.56 and 183,059.01 is: 252,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,003.68 : 440,221.56 = 183,059.01 : x
  2. Step 2: Convert to fraction form
    319,003.68/440,221.56 = 183,059.01/x
  3. Step 3: Cross multiply
    319,003.68x = 440,221.56 × 183,059.01
  4. Step 4: Simplify right side
    319,003.68x = 80,586,522,954.26
  5. Step 5: Solve for x
    x = 80,586,522,954.26/319,003.68
  6. Step 6: Final answer
    x = 252,619.41

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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.