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Finding the Fourth Proportional to 263,017.80, 368,458.20 and 263,017.80

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Solution

The fourth proportional to 263,017.80, 368,458.20 and 263,017.80 is: 368,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,017.80 : 368,458.20 = 263,017.80 : x
  2. Step 2: Convert to fraction form
    263,017.80/368,458.20 = 263,017.80/x
  3. Step 3: Cross multiply
    263,017.80x = 368,458.20 × 263,017.80
  4. Step 4: Simplify right side
    263,017.80x = 96,911,065,155.96
  5. Step 5: Solve for x
    x = 96,911,065,155.96/263,017.80
  6. Step 6: Final answer
    x = 368,458.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.