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Finding the Fourth Proportional to 248,575.80, 372,912.30 and 98,790.60

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Solution

The fourth proportional to 248,575.80, 372,912.30 and 98,790.60 is: 148,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,575.80 : 372,912.30 = 98,790.60 : x
  2. Step 2: Convert to fraction form
    248,575.80/372,912.30 = 98,790.60/x
  3. Step 3: Cross multiply
    248,575.80x = 372,912.30 × 98,790.60
  4. Step 4: Simplify right side
    248,575.80x = 36,840,229,864.38
  5. Step 5: Solve for x
    x = 36,840,229,864.38/248,575.80
  6. Step 6: Final answer
    x = 148,205.21

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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.