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Finding the Fourth Proportional to 68,441.76, 102,695.43 and 33,362.28

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Solution

The fourth proportional to 68,441.76, 102,695.43 and 33,362.28 is: 50,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441.76 : 102,695.43 = 33,362.28 : x
  2. Step 2: Convert to fraction form
    68,441.76/102,695.43 = 33,362.28/x
  3. Step 3: Cross multiply
    68,441.76x = 102,695.43 × 33,362.28
  4. Step 4: Simplify right side
    68,441.76x = 3,426,153,690.38
  5. Step 5: Solve for x
    x = 3,426,153,690.38/68,441.76
  6. Step 6: Final answer
    x = 50,059.40

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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.