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Finding the Fourth Proportional to 153,776.50, 212,211.67 and 85,793.47

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Solution

The fourth proportional to 153,776.50, 212,211.67 and 85,793.47 is: 118,395.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,776.50 : 212,211.67 = 85,793.47 : x
  2. Step 2: Convert to fraction form
    153,776.50/212,211.67 = 85,793.47/x
  3. Step 3: Cross multiply
    153,776.50x = 212,211.67 × 85,793.47
  4. Step 4: Simplify right side
    153,776.50x = 18,206,375,543.79
  5. Step 5: Solve for x
    x = 18,206,375,543.79/153,776.50
  6. Step 6: Final answer
    x = 118,395.04

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