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Finding the Fourth Proportional to 78,568.96, 108,429.12 and 45,034.88

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Solution

The fourth proportional to 78,568.96, 108,429.12 and 45,034.88 is: 62,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568.96 : 108,429.12 = 45,034.88 : x
  2. Step 2: Convert to fraction form
    78,568.96/108,429.12 = 45,034.88/x
  3. Step 3: Cross multiply
    78,568.96x = 108,429.12 × 45,034.88
  4. Step 4: Simplify right side
    78,568.96x = 4,883,092,407.71
  5. Step 5: Solve for x
    x = 4,883,092,407.71/78,568.96
  6. Step 6: Final answer
    x = 62,150.40

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