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Finding the Fourth Proportional to 248,300.80, 372,451.20 and 98,576.80

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Solution

The fourth proportional to 248,300.80, 372,451.20 and 98,576.80 is: 147,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,300.80 : 372,451.20 = 98,576.80 : x
  2. Step 2: Convert to fraction form
    248,300.80/372,451.20 = 98,576.80/x
  3. Step 3: Cross multiply
    248,300.80x = 372,451.20 × 98,576.80
  4. Step 4: Simplify right side
    248,300.80x = 36,715,047,452.16
  5. Step 5: Solve for x
    x = 36,715,047,452.16/248,300.80
  6. Step 6: Final answer
    x = 147,865.20

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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.