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Finding the Fourth Proportional to 253,179.69, 349,390.31 and 140,004.33

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Solution

The fourth proportional to 253,179.69, 349,390.31 and 140,004.33 is: 193,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,179.69 : 349,390.31 = 140,004.33 : x
  2. Step 2: Convert to fraction form
    253,179.69/349,390.31 = 140,004.33/x
  3. Step 3: Cross multiply
    253,179.69x = 349,390.31 × 140,004.33
  4. Step 4: Simplify right side
    253,179.69x = 48,916,155,560.02
  5. Step 5: Solve for x
    x = 48,916,155,560.02/253,179.69
  6. Step 6: Final answer
    x = 193,207.27

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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.