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Finding the Fourth Proportional to 68,802.43, 94,908.90 and 43,299.28

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Solution

The fourth proportional to 68,802.43, 94,908.90 and 43,299.28 is: 59,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,802.43 : 94,908.90 = 43,299.28 : x
  2. Step 2: Convert to fraction form
    68,802.43/94,908.90 = 43,299.28/x
  3. Step 3: Cross multiply
    68,802.43x = 94,908.90 × 43,299.28
  4. Step 4: Simplify right side
    68,802.43x = 4,109,487,035.59
  5. Step 5: Solve for x
    x = 4,109,487,035.59/68,802.43
  6. Step 6: Final answer
    x = 59,728.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.