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Finding the Fourth Proportional to 157,225.98, 216,975.74 and 85,609.92

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Solution

The fourth proportional to 157,225.98, 216,975.74 and 85,609.92 is: 118,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,225.98 : 216,975.74 = 85,609.92 : x
  2. Step 2: Convert to fraction form
    157,225.98/216,975.74 = 85,609.92/x
  3. Step 3: Cross multiply
    157,225.98x = 216,975.74 × 85,609.92
  4. Step 4: Simplify right side
    157,225.98x = 18,575,275,743.34
  5. Step 5: Solve for x
    x = 18,575,275,743.34/157,225.98
  6. Step 6: Final answer
    x = 118,143.81

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