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Finding the Fourth Proportional to 93,121.60, 128,503.83 and 50,680.03

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Solution

The fourth proportional to 93,121.60, 128,503.83 and 50,680.03 is: 69,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,121.60 : 128,503.83 = 50,680.03 : x
  2. Step 2: Convert to fraction form
    93,121.60/128,503.83 = 50,680.03/x
  3. Step 3: Cross multiply
    93,121.60x = 128,503.83 × 50,680.03
  4. Step 4: Simplify right side
    93,121.60x = 6,512,577,959.51
  5. Step 5: Solve for x
    x = 6,512,577,959.51/93,121.60
  6. Step 6: Final answer
    x = 69,936.28

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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.