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Finding the Fourth Proportional to 86,012.19, 128,952.63 and 48,614.49

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Solution

The fourth proportional to 86,012.19, 128,952.63 and 48,614.49 is: 72,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,012.19 : 128,952.63 = 48,614.49 : x
  2. Step 2: Convert to fraction form
    86,012.19/128,952.63 = 48,614.49/x
  3. Step 3: Cross multiply
    86,012.19x = 128,952.63 × 48,614.49
  4. Step 4: Simplify right side
    86,012.19x = 6,268,966,341.61
  5. Step 5: Solve for x
    x = 6,268,966,341.61/86,012.19
  6. Step 6: Final answer
    x = 72,884.63

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