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Finding the Fourth Proportional to 196,796.26, 295,172.52 and 70,431.40

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Solution

The fourth proportional to 196,796.26, 295,172.52 and 70,431.40 is: 105,639.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,796.26 : 295,172.52 = 70,431.40 : x
  2. Step 2: Convert to fraction form
    196,796.26/295,172.52 = 70,431.40/x
  3. Step 3: Cross multiply
    196,796.26x = 295,172.52 × 70,431.40
  4. Step 4: Simplify right side
    196,796.26x = 20,789,413,825.13
  5. Step 5: Solve for x
    x = 20,789,413,825.13/196,796.26
  6. Step 6: Final answer
    x = 105,639.27

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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.