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Finding the Fourth Proportional to 57,866.66, 86,658.44 and 52,257

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Solution

The fourth proportional to 57,866.66, 86,658.44 and 52,257 is: 78,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.66 : 86,658.44 = 52,257 : x
  2. Step 2: Convert to fraction form
    57,866.66/86,658.44 = 52,257/x
  3. Step 3: Cross multiply
    57,866.66x = 86,658.44 × 52,257
  4. Step 4: Simplify right side
    57,866.66x = 4,528,510,099.08
  5. Step 5: Solve for x
    x = 4,528,510,099.08/57,866.66
  6. Step 6: Final answer
    x = 78,257.67

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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.