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Finding the Fourth Proportional to 119,388.37, 164,768.02 and 68,407.86

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Solution

The fourth proportional to 119,388.37, 164,768.02 and 68,407.86 is: 94,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,388.37 : 164,768.02 = 68,407.86 : x
  2. Step 2: Convert to fraction form
    119,388.37/164,768.02 = 68,407.86/x
  3. Step 3: Cross multiply
    119,388.37x = 164,768.02 × 68,407.86
  4. Step 4: Simplify right side
    119,388.37x = 11,271,427,644.64
  5. Step 5: Solve for x
    x = 11,271,427,644.64/119,388.37
  6. Step 6: Final answer
    x = 94,409.76

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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.