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Finding the Fourth Proportional to 92,541.94, 138,812.92 and 30,212.44

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Solution

The fourth proportional to 92,541.94, 138,812.92 and 30,212.44 is: 45,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,541.94 : 138,812.92 = 30,212.44 : x
  2. Step 2: Convert to fraction form
    92,541.94/138,812.92 = 30,212.44/x
  3. Step 3: Cross multiply
    92,541.94x = 138,812.92 × 30,212.44
  4. Step 4: Simplify right side
    92,541.94x = 4,193,876,594.16
  5. Step 5: Solve for x
    x = 4,193,876,594.16/92,541.94
  6. Step 6: Final answer
    x = 45,318.66

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1.5x scale

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.