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Finding the Fourth Proportional to 161,613.63, 222,912.54 and 140,064.39

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Solution

The fourth proportional to 161,613.63, 222,912.54 and 140,064.39 is: 193,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,613.63 : 222,912.54 = 140,064.39 : x
  2. Step 2: Convert to fraction form
    161,613.63/222,912.54 = 140,064.39/x
  3. Step 3: Cross multiply
    161,613.63x = 222,912.54 × 140,064.39
  4. Step 4: Simplify right side
    161,613.63x = 31,222,108,938.45
  5. Step 5: Solve for x
    x = 31,222,108,938.45/161,613.63
  6. Step 6: Final answer
    x = 193,189.83

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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.