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Finding the Fourth Proportional to 145,109.44, 217,720.14 and 56,425.42

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Solution

The fourth proportional to 145,109.44, 217,720.14 and 56,425.42 is: 84,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,109.44 : 217,720.14 = 56,425.42 : x
  2. Step 2: Convert to fraction form
    145,109.44/217,720.14 = 56,425.42/x
  3. Step 3: Cross multiply
    145,109.44x = 217,720.14 × 56,425.42
  4. Step 4: Simplify right side
    145,109.44x = 12,284,950,341.96
  5. Step 5: Solve for x
    x = 12,284,950,341.96/145,109.44
  6. Step 6: Final answer
    x = 84,659.90

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