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Finding the Fourth Proportional to 131,221.76, 196,810.76 and 42,462.36

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Solution

The fourth proportional to 131,221.76, 196,810.76 and 42,462.36 is: 63,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,221.76 : 196,810.76 = 42,462.36 : x
  2. Step 2: Convert to fraction form
    131,221.76/196,810.76 = 42,462.36/x
  3. Step 3: Cross multiply
    131,221.76x = 196,810.76 × 42,462.36
  4. Step 4: Simplify right side
    131,221.76x = 8,357,049,449.15
  5. Step 5: Solve for x
    x = 8,357,049,449.15/131,221.76
  6. Step 6: Final answer
    x = 63,686.46

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