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Finding the Fourth Proportional to 73,973.96, 110,931.76 and 31,857.20

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Solution

The fourth proportional to 73,973.96, 110,931.76 and 31,857.20 is: 47,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,973.96 : 110,931.76 = 31,857.20 : x
  2. Step 2: Convert to fraction form
    73,973.96/110,931.76 = 31,857.20/x
  3. Step 3: Cross multiply
    73,973.96x = 110,931.76 × 31,857.20
  4. Step 4: Simplify right side
    73,973.96x = 3,533,975,264.67
  5. Step 5: Solve for x
    x = 3,533,975,264.67/73,973.96
  6. Step 6: Final answer
    x = 47,773.23

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