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Finding the Fourth Proportional to 109,696.54, 151,384.08 and 67,278.46

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Solution

The fourth proportional to 109,696.54, 151,384.08 and 67,278.46 is: 92,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,696.54 : 151,384.08 = 67,278.46 : x
  2. Step 2: Convert to fraction form
    109,696.54/151,384.08 = 67,278.46/x
  3. Step 3: Cross multiply
    109,696.54x = 151,384.08 × 67,278.46
  4. Step 4: Simplify right side
    109,696.54x = 10,184,887,770.92
  5. Step 5: Solve for x
    x = 10,184,887,770.92/109,696.54
  6. Step 6: Final answer
    x = 92,846.03

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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.