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Finding the Fourth Proportional to 318,730.68, 478,096.56 and 108,385.56

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Solution

The fourth proportional to 318,730.68, 478,096.56 and 108,385.56 is: 162,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,730.68 : 478,096.56 = 108,385.56 : x
  2. Step 2: Convert to fraction form
    318,730.68/478,096.56 = 108,385.56/x
  3. Step 3: Cross multiply
    318,730.68x = 478,096.56 × 108,385.56
  4. Step 4: Simplify right side
    318,730.68x = 51,818,763,389.67
  5. Step 5: Solve for x
    x = 51,818,763,389.67/318,730.68
  6. Step 6: Final answer
    x = 162,578.52

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