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Finding the Fourth Proportional to 93,145.74, 128,656.53 and 67,611.30

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Solution

The fourth proportional to 93,145.74, 128,656.53 and 67,611.30 is: 93,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.74 : 128,656.53 = 67,611.30 : x
  2. Step 2: Convert to fraction form
    93,145.74/128,656.53 = 67,611.30/x
  3. Step 3: Cross multiply
    93,145.74x = 128,656.53 × 67,611.30
  4. Step 4: Simplify right side
    93,145.74x = 8,698,635,246.79
  5. Step 5: Solve for x
    x = 8,698,635,246.79/93,145.74
  6. Step 6: Final answer
    x = 93,387.37

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