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Finding the Fourth Proportional to 87,159.40, 130,566.30 and 47,645.80

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Solution

The fourth proportional to 87,159.40, 130,566.30 and 47,645.80 is: 71,374.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.40 : 130,566.30 = 47,645.80 : x
  2. Step 2: Convert to fraction form
    87,159.40/130,566.30 = 47,645.80/x
  3. Step 3: Cross multiply
    87,159.40x = 130,566.30 × 47,645.80
  4. Step 4: Simplify right side
    87,159.40x = 6,220,935,816.54
  5. Step 5: Solve for x
    x = 6,220,935,816.54/87,159.40
  6. Step 6: Final answer
    x = 71,374.24

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