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Finding the Fourth Proportional to 265,970.28, 398,954.46 and 108,161.64

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Solution

The fourth proportional to 265,970.28, 398,954.46 and 108,161.64 is: 162,242.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,970.28 : 398,954.46 = 108,161.64 : x
  2. Step 2: Convert to fraction form
    265,970.28/398,954.46 = 108,161.64/x
  3. Step 3: Cross multiply
    265,970.28x = 398,954.46 × 108,161.64
  4. Step 4: Simplify right side
    265,970.28x = 43,151,568,678.91
  5. Step 5: Solve for x
    x = 43,151,568,678.91/265,970.28
  6. Step 6: Final answer
    x = 162,242.07

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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.