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Finding the Fourth Proportional to 410,079.29, 615,137.56 and 125,749.04

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Solution

The fourth proportional to 410,079.29, 615,137.56 and 125,749.04 is: 188,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,079.29 : 615,137.56 = 125,749.04 : x
  2. Step 2: Convert to fraction form
    410,079.29/615,137.56 = 125,749.04/x
  3. Step 3: Cross multiply
    410,079.29x = 615,137.56 × 125,749.04
  4. Step 4: Simplify right side
    410,079.29x = 77,352,954,247.88
  5. Step 5: Solve for x
    x = 77,352,954,247.88/410,079.29
  6. Step 6: Final answer
    x = 188,629.27

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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.