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Finding the Fourth Proportional to 123,031.52, 169,783.49 and 66,442.89

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Solution

The fourth proportional to 123,031.52, 169,783.49 and 66,442.89 is: 91,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.52 : 169,783.49 = 66,442.89 : x
  2. Step 2: Convert to fraction form
    123,031.52/169,783.49 = 66,442.89/x
  3. Step 3: Cross multiply
    123,031.52x = 169,783.49 × 66,442.89
  4. Step 4: Simplify right side
    123,031.52x = 11,280,905,417.67
  5. Step 5: Solve for x
    x = 11,280,905,417.67/123,031.52
  6. Step 6: Final answer
    x = 91,691.19

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