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Finding the Fourth Proportional to 92,814.01, 128,082.56 and 50,372.55

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Solution

The fourth proportional to 92,814.01, 128,082.56 and 50,372.55 is: 69,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,814.01 : 128,082.56 = 50,372.55 : x
  2. Step 2: Convert to fraction form
    92,814.01/128,082.56 = 50,372.55/x
  3. Step 3: Cross multiply
    92,814.01x = 128,082.56 × 50,372.55
  4. Step 4: Simplify right side
    92,814.01x = 6,451,844,905.87
  5. Step 5: Solve for x
    x = 6,451,844,905.87/92,814.01
  6. Step 6: Final answer
    x = 69,513.70

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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.