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Finding the Fourth Proportional to 57,990.84, 80,065.64 and 44,537.88

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Solution

The fourth proportional to 57,990.84, 80,065.64 and 44,537.88 is: 61,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,990.84 : 80,065.64 = 44,537.88 : x
  2. Step 2: Convert to fraction form
    57,990.84/80,065.64 = 44,537.88/x
  3. Step 3: Cross multiply
    57,990.84x = 80,065.64 × 44,537.88
  4. Step 4: Simplify right side
    57,990.84x = 3,565,953,866.44
  5. Step 5: Solve for x
    x = 3,565,953,866.44/57,990.84
  6. Step 6: Final answer
    x = 61,491.67

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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.