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Finding the Fourth Proportional to 93,097.78, 128,325.60 and 62,873.44

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Solution

The fourth proportional to 93,097.78, 128,325.60 and 62,873.44 is: 86,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,097.78 : 128,325.60 = 62,873.44 : x
  2. Step 2: Convert to fraction form
    93,097.78/128,325.60 = 62,873.44/x
  3. Step 3: Cross multiply
    93,097.78x = 128,325.60 × 62,873.44
  4. Step 4: Simplify right side
    93,097.78x = 8,068,271,912.06
  5. Step 5: Solve for x
    x = 8,068,271,912.06/93,097.78
  6. Step 6: Final answer
    x = 86,664.49

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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.