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Finding the Fourth Proportional to 101,801.03, 140,486.26 and 56,481.98

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Solution

The fourth proportional to 101,801.03, 140,486.26 and 56,481.98 is: 77,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,801.03 : 140,486.26 = 56,481.98 : x
  2. Step 2: Convert to fraction form
    101,801.03/140,486.26 = 56,481.98/x
  3. Step 3: Cross multiply
    101,801.03x = 140,486.26 × 56,481.98
  4. Step 4: Simplify right side
    101,801.03x = 7,934,942,127.59
  5. Step 5: Solve for x
    x = 7,934,942,127.59/101,801.03
  6. Step 6: Final answer
    x = 77,945.60

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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.