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Finding the Fourth Proportional to 113,719.32, 170,440.61 and 80,448.98

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Solution

The fourth proportional to 113,719.32, 170,440.61 and 80,448.98 is: 120,575.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,719.32 : 170,440.61 = 80,448.98 : x
  2. Step 2: Convert to fraction form
    113,719.32/170,440.61 = 80,448.98/x
  3. Step 3: Cross multiply
    113,719.32x = 170,440.61 × 80,448.98
  4. Step 4: Simplify right side
    113,719.32x = 13,711,771,970.63
  5. Step 5: Solve for x
    x = 13,711,771,970.63/113,719.32
  6. Step 6: Final answer
    x = 120,575.57

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