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Finding the Fourth Proportional to 117,029.80, 161,547.78 and 74,650.60

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Solution

The fourth proportional to 117,029.80, 161,547.78 and 74,650.60 is: 103,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,029.80 : 161,547.78 = 74,650.60 : x
  2. Step 2: Convert to fraction form
    117,029.80/161,547.78 = 74,650.60/x
  3. Step 3: Cross multiply
    117,029.80x = 161,547.78 × 74,650.60
  4. Step 4: Simplify right side
    117,029.80x = 12,059,638,705.67
  5. Step 5: Solve for x
    x = 12,059,638,705.67/117,029.80
  6. Step 6: Final answer
    x = 103,047.59

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