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Finding the Fourth Proportional to 161,161.41, 222,470.94 and 108,784.74

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Solution

The fourth proportional to 161,161.41, 222,470.94 and 108,784.74 is: 150,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,161.41 : 222,470.94 = 108,784.74 : x
  2. Step 2: Convert to fraction form
    161,161.41/222,470.94 = 108,784.74/x
  3. Step 3: Cross multiply
    161,161.41x = 222,470.94 × 108,784.74
  4. Step 4: Simplify right side
    161,161.41x = 24,201,443,365.46
  5. Step 5: Solve for x
    x = 24,201,443,365.46/161,161.41
  6. Step 6: Final answer
    x = 150,168.97

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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.