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Finding the Fourth Proportional to 101,796.40, 152,620.77 and 68,433.70

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Solution

The fourth proportional to 101,796.40, 152,620.77 and 68,433.70 is: 102,600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,796.40 : 152,620.77 = 68,433.70 : x
  2. Step 2: Convert to fraction form
    101,796.40/152,620.77 = 68,433.70/x
  3. Step 3: Cross multiply
    101,796.40x = 152,620.77 × 68,433.70
  4. Step 4: Simplify right side
    101,796.40x = 10,444,403,987.95
  5. Step 5: Solve for x
    x = 10,444,403,987.95/101,796.40
  6. Step 6: Final answer
    x = 102,600.92

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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.