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Finding the Fourth Proportional to 263,922.40, 395,624.40 and 130,823.20

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Solution

The fourth proportional to 263,922.40, 395,624.40 and 130,823.20 is: 196,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,922.40 : 395,624.40 = 130,823.20 : x
  2. Step 2: Convert to fraction form
    263,922.40/395,624.40 = 130,823.20/x
  3. Step 3: Cross multiply
    263,922.40x = 395,624.40 × 130,823.20
  4. Step 4: Simplify right side
    263,922.40x = 51,756,850,006.08
  5. Step 5: Solve for x
    x = 51,756,850,006.08/263,922.40
  6. Step 6: Final answer
    x = 196,106.32

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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.