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Finding the Fourth Proportional to 133,042.67, 199,390.73 and 54,064.56

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Solution

The fourth proportional to 133,042.67, 199,390.73 and 54,064.56 is: 81,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,042.67 : 199,390.73 = 54,064.56 : x
  2. Step 2: Convert to fraction form
    133,042.67/199,390.73 = 54,064.56/x
  3. Step 3: Cross multiply
    133,042.67x = 199,390.73 × 54,064.56
  4. Step 4: Simplify right side
    133,042.67x = 10,779,972,085.53
  5. Step 5: Solve for x
    x = 10,779,972,085.53/133,042.67
  6. Step 6: Final answer
    x = 81,026.43

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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.