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Finding the Fourth Proportional to 207,464.80, 310,480.40 and 124,418.40

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Solution

The fourth proportional to 207,464.80, 310,480.40 and 124,418.40 is: 186,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,464.80 : 310,480.40 = 124,418.40 : x
  2. Step 2: Convert to fraction form
    207,464.80/310,480.40 = 124,418.40/x
  3. Step 3: Cross multiply
    207,464.80x = 310,480.40 × 124,418.40
  4. Step 4: Simplify right side
    207,464.80x = 38,629,474,599.36
  5. Step 5: Solve for x
    x = 38,629,474,599.36/207,464.80
  6. Step 6: Final answer
    x = 186,197.73

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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.