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Finding the Fourth Proportional to 117,226.66, 161,763.22 and 68,823.49

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Solution

The fourth proportional to 117,226.66, 161,763.22 and 68,823.49 is: 94,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,226.66 : 161,763.22 = 68,823.49 : x
  2. Step 2: Convert to fraction form
    117,226.66/161,763.22 = 68,823.49/x
  3. Step 3: Cross multiply
    117,226.66x = 161,763.22 × 68,823.49
  4. Step 4: Simplify right side
    117,226.66x = 11,133,109,354.04
  5. Step 5: Solve for x
    x = 11,133,109,354.04/117,226.66
  6. Step 6: Final answer
    x = 94,970.80

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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.