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Finding the Fourth Proportional to 276,479.48, 414,395.48 and 105,589.26

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Solution

The fourth proportional to 276,479.48, 414,395.48 and 105,589.26 is: 158,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,479.48 : 414,395.48 = 105,589.26 : x
  2. Step 2: Convert to fraction form
    276,479.48/414,395.48 = 105,589.26/x
  3. Step 3: Cross multiply
    276,479.48x = 414,395.48 × 105,589.26
  4. Step 4: Simplify right side
    276,479.48x = 43,755,711,552.60
  5. Step 5: Solve for x
    x = 43,755,711,552.60/276,479.48
  6. Step 6: Final answer
    x = 158,260.25

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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.