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Finding the Fourth Proportional to 92,790.82, 139,062.30 and 48,324.34

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Solution

The fourth proportional to 92,790.82, 139,062.30 and 48,324.34 is: 72,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,790.82 : 139,062.30 = 48,324.34 : x
  2. Step 2: Convert to fraction form
    92,790.82/139,062.30 = 48,324.34/x
  3. Step 3: Cross multiply
    92,790.82x = 139,062.30 × 48,324.34
  4. Step 4: Simplify right side
    92,790.82x = 6,720,093,866.38
  5. Step 5: Solve for x
    x = 6,720,093,866.38/92,790.82
  6. Step 6: Final answer
    x = 72,421.97

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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.