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Finding the Fourth Proportional to 276,389.58, 414,662.13 and 98,921.82

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Solution

The fourth proportional to 276,389.58, 414,662.13 and 98,921.82 is: 148,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,389.58 : 414,662.13 = 98,921.82 : x
  2. Step 2: Convert to fraction form
    276,389.58/414,662.13 = 98,921.82/x
  3. Step 3: Cross multiply
    276,389.58x = 414,662.13 × 98,921.82
  4. Step 4: Simplify right side
    276,389.58x = 41,019,132,584.68
  5. Step 5: Solve for x
    x = 41,019,132,584.68/276,389.58
  6. Step 6: Final answer
    x = 148,410.56

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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.