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Finding the Fourth Proportional to 203,199.44, 304,813.74 and 70,077.74

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Solution

The fourth proportional to 203,199.44, 304,813.74 and 70,077.74 is: 105,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,199.44 : 304,813.74 = 70,077.74 : x
  2. Step 2: Convert to fraction form
    203,199.44/304,813.74 = 70,077.74/x
  3. Step 3: Cross multiply
    203,199.44x = 304,813.74 × 70,077.74
  4. Step 4: Simplify right side
    203,199.44x = 21,360,658,020.15
  5. Step 5: Solve for x
    x = 21,360,658,020.15/203,199.44
  6. Step 6: Final answer
    x = 105,121.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.