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Finding the Fourth Proportional to 248,613.60, 372,920.40 and 178,629.60

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Solution

The fourth proportional to 248,613.60, 372,920.40 and 178,629.60 is: 267,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,613.60 : 372,920.40 = 178,629.60 : x
  2. Step 2: Convert to fraction form
    248,613.60/372,920.40 = 178,629.60/x
  3. Step 3: Cross multiply
    248,613.60x = 372,920.40 × 178,629.60
  4. Step 4: Simplify right side
    248,613.60x = 66,614,621,883.84
  5. Step 5: Solve for x
    x = 66,614,621,883.84/248,613.60
  6. Step 6: Final answer
    x = 267,944.40

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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.