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Finding the Fourth Proportional to 453,978.40, 680,967.60 and 121,554.40

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Solution

The fourth proportional to 453,978.40, 680,967.60 and 121,554.40 is: 182,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,978.40 : 680,967.60 = 121,554.40 : x
  2. Step 2: Convert to fraction form
    453,978.40/680,967.60 = 121,554.40/x
  3. Step 3: Cross multiply
    453,978.40x = 680,967.60 × 121,554.40
  4. Step 4: Simplify right side
    453,978.40x = 82,774,608,037.44
  5. Step 5: Solve for x
    x = 82,774,608,037.44/453,978.40
  6. Step 6: Final answer
    x = 182,331.60

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