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Finding the Fourth Proportional to 93,092.22, 139,769.55 and 66,782.62

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Solution

The fourth proportional to 93,092.22, 139,769.55 and 66,782.62 is: 100,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,092.22 : 139,769.55 = 66,782.62 : x
  2. Step 2: Convert to fraction form
    93,092.22/139,769.55 = 66,782.62/x
  3. Step 3: Cross multiply
    93,092.22x = 139,769.55 × 66,782.62
  4. Step 4: Simplify right side
    93,092.22x = 9,334,176,745.22
  5. Step 5: Solve for x
    x = 9,334,176,745.22/93,092.22
  6. Step 6: Final answer
    x = 100,268.06

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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.