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Finding the Fourth Proportional to 265,736.73, 398,606.55 and 66,057.12

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Solution

The fourth proportional to 265,736.73, 398,606.55 and 66,057.12 is: 99,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,736.73 : 398,606.55 = 66,057.12 : x
  2. Step 2: Convert to fraction form
    265,736.73/398,606.55 = 66,057.12/x
  3. Step 3: Cross multiply
    265,736.73x = 398,606.55 × 66,057.12
  4. Step 4: Simplify right side
    265,736.73x = 26,330,800,706.14
  5. Step 5: Solve for x
    x = 26,330,800,706.14/265,736.73
  6. Step 6: Final answer
    x = 99,086.04

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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.