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Finding the Fourth Proportional to 358,071.36, 494,128.62 and 196,926.42

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Solution

The fourth proportional to 358,071.36, 494,128.62 and 196,926.42 is: 271,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,071.36 : 494,128.62 = 196,926.42 : x
  2. Step 2: Convert to fraction form
    358,071.36/494,128.62 = 196,926.42/x
  3. Step 3: Cross multiply
    358,071.36x = 494,128.62 × 196,926.42
  4. Step 4: Simplify right side
    358,071.36x = 97,306,980,156.14
  5. Step 5: Solve for x
    x = 97,306,980,156.14/358,071.36
  6. Step 6: Final answer
    x = 271,753.04

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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.