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Finding the Fourth Proportional to 244,660.90, 366,991.35 and 78,465.70

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Solution

The fourth proportional to 244,660.90, 366,991.35 and 78,465.70 is: 117,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,660.90 : 366,991.35 = 78,465.70 : x
  2. Step 2: Convert to fraction form
    244,660.90/366,991.35 = 78,465.70/x
  3. Step 3: Cross multiply
    244,660.90x = 366,991.35 × 78,465.70
  4. Step 4: Simplify right side
    244,660.90x = 28,796,233,171.70
  5. Step 5: Solve for x
    x = 28,796,233,171.70/244,660.90
  6. Step 6: Final answer
    x = 117,698.55

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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.