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Finding the Fourth Proportional to 56,432.22, 77,872.16 and 30,934.50

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Solution

The fourth proportional to 56,432.22, 77,872.16 and 30,934.50 is: 42,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,432.22 : 77,872.16 = 30,934.50 : x
  2. Step 2: Convert to fraction form
    56,432.22/77,872.16 = 30,934.50/x
  3. Step 3: Cross multiply
    56,432.22x = 77,872.16 × 30,934.50
  4. Step 4: Simplify right side
    56,432.22x = 2,408,936,333.52
  5. Step 5: Solve for x
    x = 2,408,936,333.52/56,432.22
  6. Step 6: Final answer
    x = 42,687.25

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