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Finding the Fourth Proportional to 125,803.12, 173,579.81 and 91,830.13

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Solution

The fourth proportional to 125,803.12, 173,579.81 and 91,830.13 is: 126,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,803.12 : 173,579.81 = 91,830.13 : x
  2. Step 2: Convert to fraction form
    125,803.12/173,579.81 = 91,830.13/x
  3. Step 3: Cross multiply
    125,803.12x = 173,579.81 × 91,830.13
  4. Step 4: Simplify right side
    125,803.12x = 15,939,855,190.63
  5. Step 5: Solve for x
    x = 15,939,855,190.63/125,803.12
  6. Step 6: Final answer
    x = 126,704.77

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