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Finding the Fourth Proportional to 358,019.58, 494,053.74 and 196,865.04

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Solution

The fourth proportional to 358,019.58, 494,053.74 and 196,865.04 is: 271,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,019.58 : 494,053.74 = 196,865.04 : x
  2. Step 2: Convert to fraction form
    358,019.58/494,053.74 = 196,865.04/x
  3. Step 3: Cross multiply
    358,019.58x = 494,053.74 × 196,865.04
  4. Step 4: Simplify right side
    358,019.58x = 97,261,909,287.25
  5. Step 5: Solve for x
    x = 97,261,909,287.25/358,019.58
  6. Step 6: Final answer
    x = 271,666.45

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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.