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Finding the Fourth Proportional to 153,172.15, 211,346.28 and 89,497.64

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Solution

The fourth proportional to 153,172.15, 211,346.28 and 89,497.64 is: 123,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,172.15 : 211,346.28 = 89,497.64 : x
  2. Step 2: Convert to fraction form
    153,172.15/211,346.28 = 89,497.64/x
  3. Step 3: Cross multiply
    153,172.15x = 211,346.28 × 89,497.64
  4. Step 4: Simplify right side
    153,172.15x = 18,914,993,811.14
  5. Step 5: Solve for x
    x = 18,914,993,811.14/153,172.15
  6. Step 6: Final answer
    x = 123,488.47

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