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Finding the Fourth Proportional to 248,576.80, 372,913.80 and 98,791.60

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Solution

The fourth proportional to 248,576.80, 372,913.80 and 98,791.60 is: 148,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,576.80 : 372,913.80 = 98,791.60 : x
  2. Step 2: Convert to fraction form
    248,576.80/372,913.80 = 98,791.60/x
  3. Step 3: Cross multiply
    248,576.80x = 372,913.80 × 98,791.60
  4. Step 4: Simplify right side
    248,576.80x = 36,840,750,964.08
  5. Step 5: Solve for x
    x = 36,840,750,964.08/248,576.80
  6. Step 6: Final answer
    x = 148,206.72

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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.