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Finding the Fourth Proportional to 80,932.96, 121,453.98 and 28,342.90

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Solution

The fourth proportional to 80,932.96, 121,453.98 and 28,342.90 is: 42,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,932.96 : 121,453.98 = 28,342.90 : x
  2. Step 2: Convert to fraction form
    80,932.96/121,453.98 = 28,342.90/x
  3. Step 3: Cross multiply
    80,932.96x = 121,453.98 × 28,342.90
  4. Step 4: Simplify right side
    80,932.96x = 3,442,358,009.74
  5. Step 5: Solve for x
    x = 3,442,358,009.74/80,932.96
  6. Step 6: Final answer
    x = 42,533.45

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