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Finding the Fourth Proportional to 93,080.66, 128,452.62 and 50,639.18

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Solution

The fourth proportional to 93,080.66, 128,452.62 and 50,639.18 is: 69,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,080.66 : 128,452.62 = 50,639.18 : x
  2. Step 2: Convert to fraction form
    93,080.66/128,452.62 = 50,639.18/x
  3. Step 3: Cross multiply
    93,080.66x = 128,452.62 × 50,639.18
  4. Step 4: Simplify right side
    93,080.66x = 6,504,735,345.65
  5. Step 5: Solve for x
    x = 6,504,735,345.65/93,080.66
  6. Step 6: Final answer
    x = 69,882.78

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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.