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Finding the Fourth Proportional to 117,854.51, 162,642.84 and 66,869.36

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Solution

The fourth proportional to 117,854.51, 162,642.84 and 66,869.36 is: 92,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.51 : 162,642.84 = 66,869.36 : x
  2. Step 2: Convert to fraction form
    117,854.51/162,642.84 = 66,869.36/x
  3. Step 3: Cross multiply
    117,854.51x = 162,642.84 × 66,869.36
  4. Step 4: Simplify right side
    117,854.51x = 10,875,822,165.32
  5. Step 5: Solve for x
    x = 10,875,822,165.32/117,854.51
  6. Step 6: Final answer
    x = 92,281.77

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