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Finding the Fourth Proportional to 248,627.70, 372,941.55 and 82,415.70

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Solution

The fourth proportional to 248,627.70, 372,941.55 and 82,415.70 is: 123,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,627.70 : 372,941.55 = 82,415.70 : x
  2. Step 2: Convert to fraction form
    248,627.70/372,941.55 = 82,415.70/x
  3. Step 3: Cross multiply
    248,627.70x = 372,941.55 × 82,415.70
  4. Step 4: Simplify right side
    248,627.70x = 30,736,238,902.34
  5. Step 5: Solve for x
    x = 30,736,238,902.34/248,627.70
  6. Step 6: Final answer
    x = 123,623.55

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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.