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Finding the Fourth Proportional to 98,476.72, 147,713.92 and 66,808.32

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Solution

The fourth proportional to 98,476.72, 147,713.92 and 66,808.32 is: 100,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,476.72 : 147,713.92 = 66,808.32 : x
  2. Step 2: Convert to fraction form
    98,476.72/147,713.92 = 66,808.32/x
  3. Step 3: Cross multiply
    98,476.72x = 147,713.92 × 66,808.32
  4. Step 4: Simplify right side
    98,476.72x = 9,868,518,835.81
  5. Step 5: Solve for x
    x = 9,868,518,835.81/98,476.72
  6. Step 6: Final answer
    x = 100,211.69

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