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Finding the Fourth Proportional to 115,260.57, 172,890.86 and 36,430.16

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Solution

The fourth proportional to 115,260.57, 172,890.86 and 36,430.16 is: 54,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,260.57 : 172,890.86 = 36,430.16 : x
  2. Step 2: Convert to fraction form
    115,260.57/172,890.86 = 36,430.16/x
  3. Step 3: Cross multiply
    115,260.57x = 172,890.86 × 36,430.16
  4. Step 4: Simplify right side
    115,260.57x = 6,298,440,645.73
  5. Step 5: Solve for x
    x = 6,298,440,645.73/115,260.57
  6. Step 6: Final answer
    x = 54,645.23

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