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Finding the Fourth Proportional to 92,129.40, 127,207.85 and 90,658.07

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Solution

The fourth proportional to 92,129.40, 127,207.85 and 90,658.07 is: 125,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,129.40 : 127,207.85 = 90,658.07 : x
  2. Step 2: Convert to fraction form
    92,129.40/127,207.85 = 90,658.07/x
  3. Step 3: Cross multiply
    92,129.40x = 127,207.85 × 90,658.07
  4. Step 4: Simplify right side
    92,129.40x = 11,532,417,760.46
  5. Step 5: Solve for x
    x = 11,532,417,760.46/92,129.40
  6. Step 6: Final answer
    x = 125,176.31

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