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Finding the Fourth Proportional to 238,653.78, 358,636.80 and 223,049.54

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Solution

The fourth proportional to 238,653.78, 358,636.80 and 223,049.54 is: 335,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,653.78 : 358,636.80 = 223,049.54 : x
  2. Step 2: Convert to fraction form
    238,653.78/358,636.80 = 223,049.54/x
  3. Step 3: Cross multiply
    238,653.78x = 358,636.80 × 223,049.54
  4. Step 4: Simplify right side
    238,653.78x = 79,993,773,267.07
  5. Step 5: Solve for x
    x = 79,993,773,267.07/238,653.78
  6. Step 6: Final answer
    x = 335,187.54

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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.