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Finding the Fourth Proportional to 156,990.98, 216,665.81 and 88,099.40

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Solution

The fourth proportional to 156,990.98, 216,665.81 and 88,099.40 is: 121,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,990.98 : 216,665.81 = 88,099.40 : x
  2. Step 2: Convert to fraction form
    156,990.98/216,665.81 = 88,099.40/x
  3. Step 3: Cross multiply
    156,990.98x = 216,665.81 × 88,099.40
  4. Step 4: Simplify right side
    156,990.98x = 19,088,126,337.69
  5. Step 5: Solve for x
    x = 19,088,126,337.69/156,990.98
  6. Step 6: Final answer
    x = 121,587.41

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