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Finding the Fourth Proportional to 202,571.20, 279,541.11 and 111,925.54

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Solution

The fourth proportional to 202,571.20, 279,541.11 and 111,925.54 is: 154,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,571.20 : 279,541.11 = 111,925.54 : x
  2. Step 2: Convert to fraction form
    202,571.20/279,541.11 = 111,925.54/x
  3. Step 3: Cross multiply
    202,571.20x = 279,541.11 × 111,925.54
  4. Step 4: Simplify right side
    202,571.20x = 31,287,789,688.95
  5. Step 5: Solve for x
    x = 31,287,789,688.95/202,571.20
  6. Step 6: Final answer
    x = 154,453.30

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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.