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Finding the Fourth Proportional to 133,031.19, 199,581.36 and 66,468.63

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Solution

The fourth proportional to 133,031.19, 199,581.36 and 66,468.63 is: 99,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,031.19 : 199,581.36 = 66,468.63 : x
  2. Step 2: Convert to fraction form
    133,031.19/199,581.36 = 66,468.63/x
  3. Step 3: Cross multiply
    133,031.19x = 199,581.36 × 66,468.63
  4. Step 4: Simplify right side
    133,031.19x = 13,265,899,572.74
  5. Step 5: Solve for x
    x = 13,265,899,572.74/133,031.19
  6. Step 6: Final answer
    x = 99,720.22

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