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Finding the Fourth Proportional to 100,668.88, 151,004.23 and 30,548.19

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Solution

The fourth proportional to 100,668.88, 151,004.23 and 30,548.19 is: 45,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,668.88 : 151,004.23 = 30,548.19 : x
  2. Step 2: Convert to fraction form
    100,668.88/151,004.23 = 30,548.19/x
  3. Step 3: Cross multiply
    100,668.88x = 151,004.23 × 30,548.19
  4. Step 4: Simplify right side
    100,668.88x = 4,612,905,756.10
  5. Step 5: Solve for x
    x = 4,612,905,756.10/100,668.88
  6. Step 6: Final answer
    x = 45,822.56

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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.