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Finding the Fourth Proportional to 353,109.70, 529,497.60 and 128,313.46

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Solution

The fourth proportional to 353,109.70, 529,497.60 and 128,313.46 is: 192,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,109.70 : 529,497.60 = 128,313.46 : x
  2. Step 2: Convert to fraction form
    353,109.70/529,497.60 = 128,313.46/x
  3. Step 3: Cross multiply
    353,109.70x = 529,497.60 × 128,313.46
  4. Step 4: Simplify right side
    353,109.70x = 67,941,669,117.70
  5. Step 5: Solve for x
    x = 67,941,669,117.70/353,109.70
  6. Step 6: Final answer
    x = 192,409.52

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