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Finding the Fourth Proportional to 98,916.91, 136,512.03 and 55,881.47

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Solution

The fourth proportional to 98,916.91, 136,512.03 and 55,881.47 is: 77,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,916.91 : 136,512.03 = 55,881.47 : x
  2. Step 2: Convert to fraction form
    98,916.91/136,512.03 = 55,881.47/x
  3. Step 3: Cross multiply
    98,916.91x = 136,512.03 × 55,881.47
  4. Step 4: Simplify right side
    98,916.91x = 7,628,492,699.53
  5. Step 5: Solve for x
    x = 7,628,492,699.53/98,916.91
  6. Step 6: Final answer
    x = 77,120.21

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