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Finding the Fourth Proportional to 270,316.62, 373,039.56 and 155,619.36

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Solution

The fourth proportional to 270,316.62, 373,039.56 and 155,619.36 is: 214,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,316.62 : 373,039.56 = 155,619.36 : x
  2. Step 2: Convert to fraction form
    270,316.62/373,039.56 = 155,619.36/x
  3. Step 3: Cross multiply
    270,316.62x = 373,039.56 × 155,619.36
  4. Step 4: Simplify right side
    270,316.62x = 58,052,177,581.88
  5. Step 5: Solve for x
    x = 58,052,177,581.88/270,316.62
  6. Step 6: Final answer
    x = 214,756.23

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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.