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Finding the Fourth Proportional to 92,662.21, 139,147.08 and 57,823.30

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Solution

The fourth proportional to 92,662.21, 139,147.08 and 57,823.30 is: 86,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,662.21 : 139,147.08 = 57,823.30 : x
  2. Step 2: Convert to fraction form
    92,662.21/139,147.08 = 57,823.30/x
  3. Step 3: Cross multiply
    92,662.21x = 139,147.08 × 57,823.30
  4. Step 4: Simplify right side
    92,662.21x = 8,045,942,366.11
  5. Step 5: Solve for x
    x = 8,045,942,366.11/92,662.21
  6. Step 6: Final answer
    x = 86,830.90

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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.