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Finding the Fourth Proportional to 73,051.88, 100,811.59 and 39,517.88

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Solution

The fourth proportional to 73,051.88, 100,811.59 and 39,517.88 is: 54,534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,051.88 : 100,811.59 = 39,517.88 : x
  2. Step 2: Convert to fraction form
    73,051.88/100,811.59 = 39,517.88/x
  3. Step 3: Cross multiply
    73,051.88x = 100,811.59 × 39,517.88
  4. Step 4: Simplify right side
    73,051.88x = 3,983,859,713.38
  5. Step 5: Solve for x
    x = 3,983,859,713.38/73,051.88
  6. Step 6: Final answer
    x = 54,534.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.