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Finding the Fourth Proportional to 443,969.88, 665,993.73 and 124,125.24

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Solution

The fourth proportional to 443,969.88, 665,993.73 and 124,125.24 is: 186,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,969.88 : 665,993.73 = 124,125.24 : x
  2. Step 2: Convert to fraction form
    443,969.88/665,993.73 = 124,125.24/x
  3. Step 3: Cross multiply
    443,969.88x = 665,993.73 × 124,125.24
  4. Step 4: Simplify right side
    443,969.88x = 82,666,631,574.75
  5. Step 5: Solve for x
    x = 82,666,631,574.75/443,969.88
  6. Step 6: Final answer
    x = 186,198.74

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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.