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Finding the Fourth Proportional to 68,795.28, 103,288.50 and 35,539.92

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Solution

The fourth proportional to 68,795.28, 103,288.50 and 35,539.92 is: 53,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,795.28 : 103,288.50 = 35,539.92 : x
  2. Step 2: Convert to fraction form
    68,795.28/103,288.50 = 35,539.92/x
  3. Step 3: Cross multiply
    68,795.28x = 103,288.50 × 35,539.92
  4. Step 4: Simplify right side
    68,795.28x = 3,670,865,026.92
  5. Step 5: Solve for x
    x = 3,670,865,026.92/68,795.28
  6. Step 6: Final answer
    x = 53,359.26

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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.