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Finding the Fourth Proportional to 205,856.60, 308,639.10 and 93,590.60

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Solution

The fourth proportional to 205,856.60, 308,639.10 and 93,590.60 is: 140,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,856.60 : 308,639.10 = 93,590.60 : x
  2. Step 2: Convert to fraction form
    205,856.60/308,639.10 = 93,590.60/x
  3. Step 3: Cross multiply
    205,856.60x = 308,639.10 × 93,590.60
  4. Step 4: Simplify right side
    205,856.60x = 28,885,718,552.46
  5. Step 5: Solve for x
    x = 28,885,718,552.46/205,856.60
  6. Step 6: Final answer
    x = 140,319.61

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