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Finding the Fourth Proportional to 339,161.50, 468,048.81 and 186,214.06

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Solution

The fourth proportional to 339,161.50, 468,048.81 and 186,214.06 is: 256,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,161.50 : 468,048.81 = 186,214.06 : x
  2. Step 2: Convert to fraction form
    339,161.50/468,048.81 = 186,214.06/x
  3. Step 3: Cross multiply
    339,161.50x = 468,048.81 × 186,214.06
  4. Step 4: Simplify right side
    339,161.50x = 87,157,269,188.27
  5. Step 5: Solve for x
    x = 87,157,269,188.27/339,161.50
  6. Step 6: Final answer
    x = 256,978.66

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1.5x scale

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.