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Finding the Fourth Proportional to 248,253.50, 372,489.60 and 82,041.50

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Solution

The fourth proportional to 248,253.50, 372,489.60 and 82,041.50 is: 123,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,253.50 : 372,489.60 = 82,041.50 : x
  2. Step 2: Convert to fraction form
    248,253.50/372,489.60 = 82,041.50/x
  3. Step 3: Cross multiply
    248,253.50x = 372,489.60 × 82,041.50
  4. Step 4: Simplify right side
    248,253.50x = 30,559,605,518.40
  5. Step 5: Solve for x
    x = 30,559,605,518.40/248,253.50
  6. Step 6: Final answer
    x = 123,098.39

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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.