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Finding the Fourth Proportional to 157,397.55, 217,202.28 and 85,776.03

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Solution

The fourth proportional to 157,397.55, 217,202.28 and 85,776.03 is: 118,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,397.55 : 217,202.28 = 85,776.03 : x
  2. Step 2: Convert to fraction form
    157,397.55/217,202.28 = 85,776.03/x
  3. Step 3: Cross multiply
    157,397.55x = 217,202.28 × 85,776.03
  4. Step 4: Simplify right side
    157,397.55x = 18,630,749,285.35
  5. Step 5: Solve for x
    x = 18,630,749,285.35/157,397.55
  6. Step 6: Final answer
    x = 118,367.47

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