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Finding the Fourth Proportional to 97,215.40, 145,628.70 and 65,722.60

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Solution

The fourth proportional to 97,215.40, 145,628.70 and 65,722.60 is: 98,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,215.40 : 145,628.70 = 65,722.60 : x
  2. Step 2: Convert to fraction form
    97,215.40/145,628.70 = 65,722.60/x
  3. Step 3: Cross multiply
    97,215.40x = 145,628.70 × 65,722.60
  4. Step 4: Simplify right side
    97,215.40x = 9,571,096,798.62
  5. Step 5: Solve for x
    x = 9,571,096,798.62/97,215.40
  6. Step 6: Final answer
    x = 98,452.48

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