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Finding the Fourth Proportional to 127,931.88, 176,546.79 and 71,346.90

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Solution

The fourth proportional to 127,931.88, 176,546.79 and 71,346.90 is: 98,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.88 : 176,546.79 = 71,346.90 : x
  2. Step 2: Convert to fraction form
    127,931.88/176,546.79 = 71,346.90/x
  3. Step 3: Cross multiply
    127,931.88x = 176,546.79 × 71,346.90
  4. Step 4: Simplify right side
    127,931.88x = 12,596,066,171.45
  5. Step 5: Solve for x
    x = 12,596,066,171.45/127,931.88
  6. Step 6: Final answer
    x = 98,459.17

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