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Finding the Fourth Proportional to 83,929.40, 125,894.10 and 28,525.40

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Solution

The fourth proportional to 83,929.40, 125,894.10 and 28,525.40 is: 42,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,929.40 : 125,894.10 = 28,525.40 : x
  2. Step 2: Convert to fraction form
    83,929.40/125,894.10 = 28,525.40/x
  3. Step 3: Cross multiply
    83,929.40x = 125,894.10 × 28,525.40
  4. Step 4: Simplify right side
    83,929.40x = 3,591,179,560.14
  5. Step 5: Solve for x
    x = 3,591,179,560.14/83,929.40
  6. Step 6: Final answer
    x = 42,788.10

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