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Finding the Fourth Proportional to 92,930.96, 128,244.39 and 50,489.12

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Solution

The fourth proportional to 92,930.96, 128,244.39 and 50,489.12 is: 69,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.96 : 128,244.39 = 50,489.12 : x
  2. Step 2: Convert to fraction form
    92,930.96/128,244.39 = 50,489.12/x
  3. Step 3: Cross multiply
    92,930.96x = 128,244.39 × 50,489.12
  4. Step 4: Simplify right side
    92,930.96x = 6,474,946,396.04
  5. Step 5: Solve for x
    x = 6,474,946,396.04/92,930.96
  6. Step 6: Final answer
    x = 69,674.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.