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Finding the Fourth Proportional to 156,571.69, 216,045.96 and 87,657.59

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Solution

The fourth proportional to 156,571.69, 216,045.96 and 87,657.59 is: 120,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,571.69 : 216,045.96 = 87,657.59 : x
  2. Step 2: Convert to fraction form
    156,571.69/216,045.96 = 87,657.59/x
  3. Step 3: Cross multiply
    156,571.69x = 216,045.96 × 87,657.59
  4. Step 4: Simplify right side
    156,571.69x = 18,938,068,182.84
  5. Step 5: Solve for x
    x = 18,938,068,182.84/156,571.69
  6. Step 6: Final answer
    x = 120,954.61

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