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Finding the Fourth Proportional to 117,103.89, 161,625.24 and 66,802.89

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Solution

The fourth proportional to 117,103.89, 161,625.24 and 66,802.89 is: 92,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,103.89 : 161,625.24 = 66,802.89 : x
  2. Step 2: Convert to fraction form
    117,103.89/161,625.24 = 66,802.89/x
  3. Step 3: Cross multiply
    117,103.89x = 161,625.24 × 66,802.89
  4. Step 4: Simplify right side
    117,103.89x = 10,797,033,128.94
  5. Step 5: Solve for x
    x = 10,797,033,128.94/117,103.89
  6. Step 6: Final answer
    x = 92,200.47

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1.5x scale

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.