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Finding the Fourth Proportional to 99,145.44, 136,812.24 and 56,697.12

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Solution

The fourth proportional to 99,145.44, 136,812.24 and 56,697.12 is: 78,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,145.44 : 136,812.24 = 56,697.12 : x
  2. Step 2: Convert to fraction form
    99,145.44/136,812.24 = 56,697.12/x
  3. Step 3: Cross multiply
    99,145.44x = 136,812.24 × 56,697.12
  4. Step 4: Simplify right side
    99,145.44x = 7,756,859,988.75
  5. Step 5: Solve for x
    x = 7,756,859,988.75/99,145.44
  6. Step 6: Final answer
    x = 78,237.18

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