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Finding the Fourth Proportional to 92,806.08, 139,179.92 and 30,462.08

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Solution

The fourth proportional to 92,806.08, 139,179.92 and 30,462.08 is: 45,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,806.08 : 139,179.92 = 30,462.08 : x
  2. Step 2: Convert to fraction form
    92,806.08/139,179.92 = 30,462.08/x
  3. Step 3: Cross multiply
    92,806.08x = 139,179.92 × 30,462.08
  4. Step 4: Simplify right side
    92,806.08x = 4,239,709,857.43
  5. Step 5: Solve for x
    x = 4,239,709,857.43/92,806.08
  6. Step 6: Final answer
    x = 45,683.54

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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.