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Finding the Fourth Proportional to 68,892.72, 103,362.07 and 26,774.16

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Solution

The fourth proportional to 68,892.72, 103,362.07 and 26,774.16 is: 40,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,892.72 : 103,362.07 = 26,774.16 : x
  2. Step 2: Convert to fraction form
    68,892.72/103,362.07 = 26,774.16/x
  3. Step 3: Cross multiply
    68,892.72x = 103,362.07 × 26,774.16
  4. Step 4: Simplify right side
    68,892.72x = 2,767,432,600.11
  5. Step 5: Solve for x
    x = 2,767,432,600.11/68,892.72
  6. Step 6: Final answer
    x = 40,170.17

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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.