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Finding the Fourth Proportional to 56,748.44, 78,312.11 and 31,254.32

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Solution

The fourth proportional to 56,748.44, 78,312.11 and 31,254.32 is: 43,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,748.44 : 78,312.11 = 31,254.32 : x
  2. Step 2: Convert to fraction form
    56,748.44/78,312.11 = 31,254.32/x
  3. Step 3: Cross multiply
    56,748.44x = 78,312.11 × 31,254.32
  4. Step 4: Simplify right side
    56,748.44x = 2,447,591,197.98
  5. Step 5: Solve for x
    x = 2,447,591,197.98/56,748.44
  6. Step 6: Final answer
    x = 43,130.55

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