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Finding the Fourth Proportional to 68,921.94, 103,331.01 and 35,192.94

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Solution

The fourth proportional to 68,921.94, 103,331.01 and 35,192.94 is: 52,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.94 : 103,331.01 = 35,192.94 : x
  2. Step 2: Convert to fraction form
    68,921.94/103,331.01 = 35,192.94/x
  3. Step 3: Cross multiply
    68,921.94x = 103,331.01 × 35,192.94
  4. Step 4: Simplify right side
    68,921.94x = 3,636,522,035.07
  5. Step 5: Solve for x
    x = 3,636,522,035.07/68,921.94
  6. Step 6: Final answer
    x = 52,762.91

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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.