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Finding the Fourth Proportional to 202,352.60, 279,245.06 and 111,708.60

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Solution

The fourth proportional to 202,352.60, 279,245.06 and 111,708.60 is: 154,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,352.60 : 279,245.06 = 111,708.60 : x
  2. Step 2: Convert to fraction form
    202,352.60/279,245.06 = 111,708.60/x
  3. Step 3: Cross multiply
    202,352.60x = 279,245.06 × 111,708.60
  4. Step 4: Simplify right side
    202,352.60x = 31,194,074,709.52
  5. Step 5: Solve for x
    x = 31,194,074,709.52/202,352.60
  6. Step 6: Final answer
    x = 154,157.02

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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.