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Finding the Fourth Proportional to 67,627.77, 101,461.11 and 20,246.43

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Solution

The fourth proportional to 67,627.77, 101,461.11 and 20,246.43 is: 30,375.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,627.77 : 101,461.11 = 20,246.43 : x
  2. Step 2: Convert to fraction form
    67,627.77/101,461.11 = 20,246.43/x
  3. Step 3: Cross multiply
    67,627.77x = 101,461.11 × 20,246.43
  4. Step 4: Simplify right side
    67,627.77x = 2,054,225,261.34
  5. Step 5: Solve for x
    x = 2,054,225,261.34/67,627.77
  6. Step 6: Final answer
    x = 30,375.47

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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.