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Finding the Fourth Proportional to 92,754.69, 128,000.82 and 50,313.27

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Solution

The fourth proportional to 92,754.69, 128,000.82 and 50,313.27 is: 69,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,754.69 : 128,000.82 = 50,313.27 : x
  2. Step 2: Convert to fraction form
    92,754.69/128,000.82 = 50,313.27/x
  3. Step 3: Cross multiply
    92,754.69x = 128,000.82 × 50,313.27
  4. Step 4: Simplify right side
    92,754.69x = 6,440,139,816.88
  5. Step 5: Solve for x
    x = 6,440,139,816.88/92,754.69
  6. Step 6: Final answer
    x = 69,431.96

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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.