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Finding the Fourth Proportional to 273,913.73, 378,117.34 and 166,518.05

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Solution

The fourth proportional to 273,913.73, 378,117.34 and 166,518.05 is: 229,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,913.73 : 378,117.34 = 166,518.05 : x
  2. Step 2: Convert to fraction form
    273,913.73/378,117.34 = 166,518.05/x
  3. Step 3: Cross multiply
    273,913.73x = 378,117.34 × 166,518.05
  4. Step 4: Simplify right side
    273,913.73x = 62,963,362,656.99
  5. Step 5: Solve for x
    x = 62,963,362,656.99/273,913.73
  6. Step 6: Final answer
    x = 229,865.67

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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.