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Finding the Fourth Proportional to 117,705.51, 162,430.21 and 66,722.95

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Solution

The fourth proportional to 117,705.51, 162,430.21 and 66,722.95 is: 92,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.51 : 162,430.21 = 66,722.95 : x
  2. Step 2: Convert to fraction form
    117,705.51/162,430.21 = 66,722.95/x
  3. Step 3: Cross multiply
    117,705.51x = 162,430.21 × 66,722.95
  4. Step 4: Simplify right side
    117,705.51x = 10,837,822,780.32
  5. Step 5: Solve for x
    x = 10,837,822,780.32/117,705.51
  6. Step 6: Final answer
    x = 92,075.75

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