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Finding the Fourth Proportional to 193,509.96, 290,261.94 and 136,347.54

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Solution

The fourth proportional to 193,509.96, 290,261.94 and 136,347.54 is: 204,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,509.96 : 290,261.94 = 136,347.54 : x
  2. Step 2: Convert to fraction form
    193,509.96/290,261.94 = 136,347.54/x
  3. Step 3: Cross multiply
    193,509.96x = 290,261.94 × 136,347.54
  4. Step 4: Simplify right side
    193,509.96x = 39,576,501,474.63
  5. Step 5: Solve for x
    x = 39,576,501,474.63/193,509.96
  6. Step 6: Final answer
    x = 204,519.20

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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.