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Finding the Fourth Proportional to 248,189.72, 372,284.58 and 148,378.46

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Solution

The fourth proportional to 248,189.72, 372,284.58 and 148,378.46 is: 222,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,189.72 : 372,284.58 = 148,378.46 : x
  2. Step 2: Convert to fraction form
    248,189.72/372,284.58 = 148,378.46/x
  3. Step 3: Cross multiply
    248,189.72x = 372,284.58 × 148,378.46
  4. Step 4: Simplify right side
    248,189.72x = 55,239,012,662.15
  5. Step 5: Solve for x
    x = 55,239,012,662.15/248,189.72
  6. Step 6: Final answer
    x = 222,567.69

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Similar ratio
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1.5x scale

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.