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Finding the Third Proportional to 155,198.63 and 240,406.50

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Solution

The third proportional to 155,198.63 and 240,406.50 is: 372,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,198.63 : 240,406.50 = 240,406.50 : x
  2. Step 2: Convert to fraction form
    155,198.63/240,406.50 = 240,406.50/x
  3. Step 3: Cross multiply
    155,198.63x = 240,406.50 × 240,406.50
  4. Step 4: Simplify right side
    155,198.63x = 57,795,285,242.25
  5. Step 5: Solve for x
    x = 57,795,285,242.25/155,198.63
  6. Step 6: Final answer
    x = 372,395.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.