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Finding the Fourth Proportional to 270,486.74, 373,299.44 and 155,769.68

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Solution

The fourth proportional to 270,486.74, 373,299.44 and 155,769.68 is: 214,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,486.74 : 373,299.44 = 155,769.68 : x
  2. Step 2: Convert to fraction form
    270,486.74/373,299.44 = 155,769.68/x
  3. Step 3: Cross multiply
    270,486.74x = 373,299.44 × 155,769.68
  4. Step 4: Simplify right side
    270,486.74x = 58,148,734,467.38
  5. Step 5: Solve for x
    x = 58,148,734,467.38/270,486.74
  6. Step 6: Final answer
    x = 214,978.13

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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.