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Finding the Fourth Proportional to 157,420.02, 217,244.24 and 85,804.68

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Solution

The fourth proportional to 157,420.02, 217,244.24 and 85,804.68 is: 118,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420.02 : 217,244.24 = 85,804.68 : x
  2. Step 2: Convert to fraction form
    157,420.02/217,244.24 = 85,804.68/x
  3. Step 3: Cross multiply
    157,420.02x = 217,244.24 × 85,804.68
  4. Step 4: Simplify right side
    157,420.02x = 18,640,572,495.04
  5. Step 5: Solve for x
    x = 18,640,572,495.04/157,420.02
  6. Step 6: Final answer
    x = 118,412.97

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