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Finding the Fourth Proportional to 157,023.24, 216,693.18 and 85,405.56

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Solution

The fourth proportional to 157,023.24, 216,693.18 and 85,405.56 is: 117,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,023.24 : 216,693.18 = 85,405.56 : x
  2. Step 2: Convert to fraction form
    157,023.24/216,693.18 = 85,405.56/x
  3. Step 3: Cross multiply
    157,023.24x = 216,693.18 × 85,405.56
  4. Step 4: Simplify right side
    157,023.24x = 18,506,802,386.08
  5. Step 5: Solve for x
    x = 18,506,802,386.08/157,023.24
  6. Step 6: Final answer
    x = 117,860.28

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