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Finding the Fourth Proportional to 202,505.44, 279,458.08 and 111,859.60

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Solution

The fourth proportional to 202,505.44, 279,458.08 and 111,859.60 is: 154,366.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,505.44 : 279,458.08 = 111,859.60 : x
  2. Step 2: Convert to fraction form
    202,505.44/279,458.08 = 111,859.60/x
  3. Step 3: Cross multiply
    202,505.44x = 279,458.08 × 111,859.60
  4. Step 4: Simplify right side
    202,505.44x = 31,260,069,045.57
  5. Step 5: Solve for x
    x = 31,260,069,045.57/202,505.44
  6. Step 6: Final answer
    x = 154,366.56

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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.