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Finding the Fourth Proportional to 101,854.26, 152,761.59 and 51,239.79

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Solution

The fourth proportional to 101,854.26, 152,761.59 and 51,239.79 is: 76,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,854.26 : 152,761.59 = 51,239.79 : x
  2. Step 2: Convert to fraction form
    101,854.26/152,761.59 = 51,239.79/x
  3. Step 3: Cross multiply
    101,854.26x = 152,761.59 × 51,239.79
  4. Step 4: Simplify right side
    101,854.26x = 7,827,471,791.67
  5. Step 5: Solve for x
    x = 7,827,471,791.67/101,854.26
  6. Step 6: Final answer
    x = 76,849.72

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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.