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Finding the Fourth Proportional to 303,973.80, 419,505.56 and 168,004.82

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Solution

The fourth proportional to 303,973.80, 419,505.56 and 168,004.82 is: 231,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,973.80 : 419,505.56 = 168,004.82 : x
  2. Step 2: Convert to fraction form
    303,973.80/419,505.56 = 168,004.82/x
  3. Step 3: Cross multiply
    303,973.80x = 419,505.56 × 168,004.82
  4. Step 4: Simplify right side
    303,973.80x = 70,478,955,256.78
  5. Step 5: Solve for x
    x = 70,478,955,256.78/303,973.80
  6. Step 6: Final answer
    x = 231,858.65

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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.