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Finding the Fourth Proportional to 355,140.80, 533,013.60 and 144,929.60

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Solution

The fourth proportional to 355,140.80, 533,013.60 and 144,929.60 is: 217,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,140.80 : 533,013.60 = 144,929.60 : x
  2. Step 2: Convert to fraction form
    355,140.80/533,013.60 = 144,929.60/x
  3. Step 3: Cross multiply
    355,140.80x = 533,013.60 × 144,929.60
  4. Step 4: Simplify right side
    355,140.80x = 77,249,447,842.56
  5. Step 5: Solve for x
    x = 77,249,447,842.56/355,140.80
  6. Step 6: Final answer
    x = 217,517.81

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