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Finding the Fourth Proportional to 97,709.40, 146,564.10 and 66,605.40

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Solution

The fourth proportional to 97,709.40, 146,564.10 and 66,605.40 is: 99,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,709.40 : 146,564.10 = 66,605.40 : x
  2. Step 2: Convert to fraction form
    97,709.40/146,564.10 = 66,605.40/x
  3. Step 3: Cross multiply
    97,709.40x = 146,564.10 × 66,605.40
  4. Step 4: Simplify right side
    97,709.40x = 9,761,960,506.14
  5. Step 5: Solve for x
    x = 9,761,960,506.14/97,709.40
  6. Step 6: Final answer
    x = 99,908.10

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