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Finding the Fourth Proportional to 93,293.38, 128,744.06 and 50,851

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Solution

The fourth proportional to 93,293.38, 128,744.06 and 50,851 is: 70,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,293.38 : 128,744.06 = 50,851 : x
  2. Step 2: Convert to fraction form
    93,293.38/128,744.06 = 50,851/x
  3. Step 3: Cross multiply
    93,293.38x = 128,744.06 × 50,851
  4. Step 4: Simplify right side
    93,293.38x = 6,546,764,195.06
  5. Step 5: Solve for x
    x = 6,546,764,195.06/93,293.38
  6. Step 6: Final answer
    x = 70,173.94

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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.