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Finding the Fourth Proportional to 270,608.60, 373,434.26 and 149,742.63

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Solution

The fourth proportional to 270,608.60, 373,434.26 and 149,742.63 is: 206,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,608.60 : 373,434.26 = 149,742.63 : x
  2. Step 2: Convert to fraction form
    270,608.60/373,434.26 = 149,742.63/x
  3. Step 3: Cross multiply
    270,608.60x = 373,434.26 × 149,742.63
  4. Step 4: Simplify right side
    270,608.60x = 55,919,027,475.79
  5. Step 5: Solve for x
    x = 55,919,027,475.79/270,608.60
  6. Step 6: Final answer
    x = 206,641.72

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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.