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Finding the Fourth Proportional to 108,036.32, 161,777.28 and 74,710.40

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Solution

The fourth proportional to 108,036.32, 161,777.28 and 74,710.40 is: 111,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,036.32 : 161,777.28 = 74,710.40 : x
  2. Step 2: Convert to fraction form
    108,036.32/161,777.28 = 74,710.40/x
  3. Step 3: Cross multiply
    108,036.32x = 161,777.28 × 74,710.40
  4. Step 4: Simplify right side
    108,036.32x = 12,086,445,299.71
  5. Step 5: Solve for x
    x = 12,086,445,299.71/108,036.32
  6. Step 6: Final answer
    x = 111,873.91

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