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Finding the Fourth Proportional to 385,787.60, 578,401.04 and 161,212.40

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Solution

The fourth proportional to 385,787.60, 578,401.04 and 161,212.40 is: 241,701.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,787.60 : 578,401.04 = 161,212.40 : x
  2. Step 2: Convert to fraction form
    385,787.60/578,401.04 = 161,212.40/x
  3. Step 3: Cross multiply
    385,787.60x = 578,401.04 × 161,212.40
  4. Step 4: Simplify right side
    385,787.60x = 93,245,419,820.90
  5. Step 5: Solve for x
    x = 93,245,419,820.90/385,787.60
  6. Step 6: Final answer
    x = 241,701.44

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