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Finding the Fourth Proportional to 240,558.80, 360,838.20 and 115,912.40

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Solution

The fourth proportional to 240,558.80, 360,838.20 and 115,912.40 is: 173,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,558.80 : 360,838.20 = 115,912.40 : x
  2. Step 2: Convert to fraction form
    240,558.80/360,838.20 = 115,912.40/x
  3. Step 3: Cross multiply
    240,558.80x = 360,838.20 × 115,912.40
  4. Step 4: Simplify right side
    240,558.80x = 41,825,621,773.68
  5. Step 5: Solve for x
    x = 41,825,621,773.68/240,558.80
  6. Step 6: Final answer
    x = 173,868.60

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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.