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Finding the Fourth Proportional to 147,366.54, 203,365.79 and 80,298.54

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Solution

The fourth proportional to 147,366.54, 203,365.79 and 80,298.54 is: 110,811.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,366.54 : 203,365.79 = 80,298.54 : x
  2. Step 2: Convert to fraction form
    147,366.54/203,365.79 = 80,298.54/x
  3. Step 3: Cross multiply
    147,366.54x = 203,365.79 × 80,298.54
  4. Step 4: Simplify right side
    147,366.54x = 16,329,975,922.57
  5. Step 5: Solve for x
    x = 16,329,975,922.57/147,366.54
  6. Step 6: Final answer
    x = 110,811.97

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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.