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Finding the Fourth Proportional to 147,639.60, 221,459.40 and 103,316.40

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Solution

The fourth proportional to 147,639.60, 221,459.40 and 103,316.40 is: 154,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.60 : 221,459.40 = 103,316.40 : x
  2. Step 2: Convert to fraction form
    147,639.60/221,459.40 = 103,316.40/x
  3. Step 3: Cross multiply
    147,639.60x = 221,459.40 × 103,316.40
  4. Step 4: Simplify right side
    147,639.60x = 22,880,387,954.16
  5. Step 5: Solve for x
    x = 22,880,387,954.16/147,639.60
  6. Step 6: Final answer
    x = 154,974.60

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