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Finding the Fourth Proportional to 276,020.10, 414,273.15 and 163,559.70

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Solution

The fourth proportional to 276,020.10, 414,273.15 and 163,559.70 is: 245,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,020.10 : 414,273.15 = 163,559.70 : x
  2. Step 2: Convert to fraction form
    276,020.10/414,273.15 = 163,559.70/x
  3. Step 3: Cross multiply
    276,020.10x = 414,273.15 × 163,559.70
  4. Step 4: Simplify right side
    276,020.10x = 67,758,392,132.06
  5. Step 5: Solve for x
    x = 67,758,392,132.06/276,020.10
  6. Step 6: Final answer
    x = 245,483.54

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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.