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Finding the Fourth Proportional to 276,312.60, 414,687.60 and 107,913.60

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Solution

The fourth proportional to 276,312.60, 414,687.60 and 107,913.60 is: 161,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,312.60 : 414,687.60 = 107,913.60 : x
  2. Step 2: Convert to fraction form
    276,312.60/414,687.60 = 107,913.60/x
  3. Step 3: Cross multiply
    276,312.60x = 414,687.60 × 107,913.60
  4. Step 4: Simplify right side
    276,312.60x = 44,750,431,791.36
  5. Step 5: Solve for x
    x = 44,750,431,791.36/276,312.60
  6. Step 6: Final answer
    x = 161,955.81

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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.