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Finding the Fourth Proportional to 93,351.88, 140,028.68 and 30,172.03

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Solution

The fourth proportional to 93,351.88, 140,028.68 and 30,172.03 is: 45,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,351.88 : 140,028.68 = 30,172.03 : x
  2. Step 2: Convert to fraction form
    93,351.88/140,028.68 = 30,172.03/x
  3. Step 3: Cross multiply
    93,351.88x = 140,028.68 × 30,172.03
  4. Step 4: Simplify right side
    93,351.88x = 4,224,949,533.82
  5. Step 5: Solve for x
    x = 4,224,949,533.82/93,351.88
  6. Step 6: Final answer
    x = 45,258.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.