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Finding the Fourth Proportional to 117,616.84, 162,311.63 and 66,639.01

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Solution

The fourth proportional to 117,616.84, 162,311.63 and 66,639.01 is: 91,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,616.84 : 162,311.63 = 66,639.01 : x
  2. Step 2: Convert to fraction form
    117,616.84/162,311.63 = 66,639.01/x
  3. Step 3: Cross multiply
    117,616.84x = 162,311.63 × 66,639.01
  4. Step 4: Simplify right side
    117,616.84x = 10,816,286,095.50
  5. Step 5: Solve for x
    x = 10,816,286,095.50/117,616.84
  6. Step 6: Final answer
    x = 91,962.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.