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Finding the Fourth Proportional to 68,866.56, 103,202.64 and 29,409.84

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Solution

The fourth proportional to 68,866.56, 103,202.64 and 29,409.84 is: 44,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,866.56 : 103,202.64 = 29,409.84 : x
  2. Step 2: Convert to fraction form
    68,866.56/103,202.64 = 29,409.84/x
  3. Step 3: Cross multiply
    68,866.56x = 103,202.64 × 29,409.84
  4. Step 4: Simplify right side
    68,866.56x = 3,035,173,129.98
  5. Step 5: Solve for x
    x = 3,035,173,129.98/68,866.56
  6. Step 6: Final answer
    x = 44,073.25

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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.