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Finding the Fourth Proportional to 56,429.40, 84,665.70 and 55,543.80

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Solution

The fourth proportional to 56,429.40, 84,665.70 and 55,543.80 is: 83,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,429.40 : 84,665.70 = 55,543.80 : x
  2. Step 2: Convert to fraction form
    56,429.40/84,665.70 = 55,543.80/x
  3. Step 3: Cross multiply
    56,429.40x = 84,665.70 × 55,543.80
  4. Step 4: Simplify right side
    56,429.40x = 4,702,654,707.66
  5. Step 5: Solve for x
    x = 4,702,654,707.66/56,429.40
  6. Step 6: Final answer
    x = 83,336.96

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