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Finding the Fourth Proportional to 478,640.17, 718,045.64 and 158,811.23

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Solution

The fourth proportional to 478,640.17, 718,045.64 and 158,811.23 is: 238,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,640.17 : 718,045.64 = 158,811.23 : x
  2. Step 2: Convert to fraction form
    478,640.17/718,045.64 = 158,811.23/x
  3. Step 3: Cross multiply
    478,640.17x = 718,045.64 × 158,811.23
  4. Step 4: Simplify right side
    478,640.17x = 114,033,709,489.42
  5. Step 5: Solve for x
    x = 114,033,709,489.42/478,640.17
  6. Step 6: Final answer
    x = 238,245.17

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