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Finding the Fourth Proportional to 117,621.32, 176,376.42 and 42,689.03

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Solution

The fourth proportional to 117,621.32, 176,376.42 and 42,689.03 is: 64,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621.32 : 176,376.42 = 42,689.03 : x
  2. Step 2: Convert to fraction form
    117,621.32/176,376.42 = 42,689.03/x
  3. Step 3: Cross multiply
    117,621.32x = 176,376.42 × 42,689.03
  4. Step 4: Simplify right side
    117,621.32x = 7,529,337,402.79
  5. Step 5: Solve for x
    x = 7,529,337,402.79/117,621.32
  6. Step 6: Final answer
    x = 64,013.38

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