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Finding the Fourth Proportional to 216,743.44, 325,034.50 and 74,548.80

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Solution

The fourth proportional to 216,743.44, 325,034.50 and 74,548.80 is: 111,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,743.44 : 325,034.50 = 74,548.80 : x
  2. Step 2: Convert to fraction form
    216,743.44/325,034.50 = 74,548.80/x
  3. Step 3: Cross multiply
    216,743.44x = 325,034.50 × 74,548.80
  4. Step 4: Simplify right side
    216,743.44x = 24,230,931,933.60
  5. Step 5: Solve for x
    x = 24,230,931,933.60/216,743.44
  6. Step 6: Final answer
    x = 111,795.46

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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.