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Finding the Fourth Proportional to 93,011.09, 128,127.51 and 67,442.31

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Solution

The fourth proportional to 93,011.09, 128,127.51 and 67,442.31 is: 92,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,011.09 : 128,127.51 = 67,442.31 : x
  2. Step 2: Convert to fraction form
    93,011.09/128,127.51 = 67,442.31/x
  3. Step 3: Cross multiply
    93,011.09x = 128,127.51 × 67,442.31
  4. Step 4: Simplify right side
    93,011.09x = 8,641,215,248.95
  5. Step 5: Solve for x
    x = 8,641,215,248.95/93,011.09
  6. Step 6: Final answer
    x = 92,905.22

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