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Finding the Fourth Proportional to 324,082.60, 486,059.10 and 155,602.60

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Solution

The fourth proportional to 324,082.60, 486,059.10 and 155,602.60 is: 233,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,082.60 : 486,059.10 = 155,602.60 : x
  2. Step 2: Convert to fraction form
    324,082.60/486,059.10 = 155,602.60/x
  3. Step 3: Cross multiply
    324,082.60x = 486,059.10 × 155,602.60
  4. Step 4: Simplify right side
    324,082.60x = 75,632,059,713.66
  5. Step 5: Solve for x
    x = 75,632,059,713.66/324,082.60
  6. Step 6: Final answer
    x = 233,372.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.