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Finding the Fourth Proportional to 93,082.22, 128,452.05 and 50,639.78

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Solution

The fourth proportional to 93,082.22, 128,452.05 and 50,639.78 is: 69,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,082.22 : 128,452.05 = 50,639.78 : x
  2. Step 2: Convert to fraction form
    93,082.22/128,452.05 = 50,639.78/x
  3. Step 3: Cross multiply
    93,082.22x = 128,452.05 × 50,639.78
  4. Step 4: Simplify right side
    93,082.22x = 6,504,783,552.55
  5. Step 5: Solve for x
    x = 6,504,783,552.55/93,082.22
  6. Step 6: Final answer
    x = 69,882.13

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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.