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Finding the Fourth Proportional to 266,628.43, 399,903.29 and 98,109.60

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Solution

The fourth proportional to 266,628.43, 399,903.29 and 98,109.60 is: 147,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,628.43 : 399,903.29 = 98,109.60 : x
  2. Step 2: Convert to fraction form
    266,628.43/399,903.29 = 98,109.60/x
  3. Step 3: Cross multiply
    266,628.43x = 399,903.29 × 98,109.60
  4. Step 4: Simplify right side
    266,628.43x = 39,234,350,750.18
  5. Step 5: Solve for x
    x = 39,234,350,750.18/266,628.43
  6. Step 6: Final answer
    x = 147,149.92

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