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Finding the Fourth Proportional to 102,488.66, 141,434.57 and 57,165.48

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Solution

The fourth proportional to 102,488.66, 141,434.57 and 57,165.48 is: 78,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,488.66 : 141,434.57 = 57,165.48 : x
  2. Step 2: Convert to fraction form
    102,488.66/141,434.57 = 57,165.48/x
  3. Step 3: Cross multiply
    102,488.66x = 141,434.57 × 57,165.48
  4. Step 4: Simplify right side
    102,488.66x = 8,085,174,375.47
  5. Step 5: Solve for x
    x = 8,085,174,375.47/102,488.66
  6. Step 6: Final answer
    x = 78,888.48

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