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Finding the Fourth Proportional to 209,902.32, 314,697.96 and 126,776.88

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Solution

The fourth proportional to 209,902.32, 314,697.96 and 126,776.88 is: 190,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,902.32 : 314,697.96 = 126,776.88 : x
  2. Step 2: Convert to fraction form
    209,902.32/314,697.96 = 126,776.88/x
  3. Step 3: Cross multiply
    209,902.32x = 314,697.96 × 126,776.88
  4. Step 4: Simplify right side
    209,902.32x = 39,896,425,511.16
  5. Step 5: Solve for x
    x = 39,896,425,511.16/209,902.32
  6. Step 6: Final answer
    x = 190,071.39

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