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Finding the Fourth Proportional to 99,416.16, 137,197.53 and 56,982.69

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Solution

The fourth proportional to 99,416.16, 137,197.53 and 56,982.69 is: 78,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,416.16 : 137,197.53 = 56,982.69 : x
  2. Step 2: Convert to fraction form
    99,416.16/137,197.53 = 56,982.69/x
  3. Step 3: Cross multiply
    99,416.16x = 137,197.53 × 56,982.69
  4. Step 4: Simplify right side
    99,416.16x = 7,817,884,320.76
  5. Step 5: Solve for x
    x = 7,817,884,320.76/99,416.16
  6. Step 6: Final answer
    x = 78,637.96

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