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Finding the Fourth Proportional to 262,811.20, 368,868.80 and 262,811.20

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Solution

The fourth proportional to 262,811.20, 368,868.80 and 262,811.20 is: 368,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,811.20 : 368,868.80 = 262,811.20 : x
  2. Step 2: Convert to fraction form
    262,811.20/368,868.80 = 262,811.20/x
  3. Step 3: Cross multiply
    262,811.20x = 368,868.80 × 262,811.20
  4. Step 4: Simplify right side
    262,811.20x = 96,942,851,970.56
  5. Step 5: Solve for x
    x = 96,942,851,970.56/262,811.20
  6. Step 6: Final answer
    x = 368,868.80

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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.