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Finding the Fourth Proportional to 101,796.45, 152,754.21 and 42,627.17

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Solution

The fourth proportional to 101,796.45, 152,754.21 and 42,627.17 is: 63,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,796.45 : 152,754.21 = 42,627.17 : x
  2. Step 2: Convert to fraction form
    101,796.45/152,754.21 = 42,627.17/x
  3. Step 3: Cross multiply
    101,796.45x = 152,754.21 × 42,627.17
  4. Step 4: Simplify right side
    101,796.45x = 6,511,478,914.11
  5. Step 5: Solve for x
    x = 6,511,478,914.11/101,796.45
  6. Step 6: Final answer
    x = 63,965.68

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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.