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Finding the Fourth Proportional to 93,189.88, 139,764.97 and 26,612.34

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Solution

The fourth proportional to 93,189.88, 139,764.97 and 26,612.34 is: 39,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,189.88 : 139,764.97 = 26,612.34 : x
  2. Step 2: Convert to fraction form
    93,189.88/139,764.97 = 26,612.34/x
  3. Step 3: Cross multiply
    93,189.88x = 139,764.97 × 26,612.34
  4. Step 4: Simplify right side
    93,189.88x = 3,719,472,901.73
  5. Step 5: Solve for x
    x = 3,719,472,901.73/93,189.88
  6. Step 6: Final answer
    x = 39,912.84

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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.