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Finding the Fourth Proportional to 93,016.90, 128,361.81 and 50,576.50

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Solution

The fourth proportional to 93,016.90, 128,361.81 and 50,576.50 is: 69,794.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,016.90 : 128,361.81 = 50,576.50 : x
  2. Step 2: Convert to fraction form
    93,016.90/128,361.81 = 50,576.50/x
  3. Step 3: Cross multiply
    93,016.90x = 128,361.81 × 50,576.50
  4. Step 4: Simplify right side
    93,016.90x = 6,492,091,083.47
  5. Step 5: Solve for x
    x = 6,492,091,083.47/93,016.90
  6. Step 6: Final answer
    x = 69,794.75

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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.