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Finding the Fourth Proportional to 248,313.50, 372,528.63 and 82,101.50

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Solution

The fourth proportional to 248,313.50, 372,528.63 and 82,101.50 is: 123,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,313.50 : 372,528.63 = 82,101.50 : x
  2. Step 2: Convert to fraction form
    248,313.50/372,528.63 = 82,101.50/x
  3. Step 3: Cross multiply
    248,313.50x = 372,528.63 × 82,101.50
  4. Step 4: Simplify right side
    248,313.50x = 30,585,159,315.95
  5. Step 5: Solve for x
    x = 30,585,159,315.95/248,313.50
  6. Step 6: Final answer
    x = 123,171.55

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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.