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Finding the Fourth Proportional to 112,707.76, 155,541.56 and 62,406.76

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Solution

The fourth proportional to 112,707.76, 155,541.56 and 62,406.76 is: 86,124.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,707.76 : 155,541.56 = 62,406.76 : x
  2. Step 2: Convert to fraction form
    112,707.76/155,541.56 = 62,406.76/x
  3. Step 3: Cross multiply
    112,707.76x = 155,541.56 × 62,406.76
  4. Step 4: Simplify right side
    112,707.76x = 9,706,844,804.95
  5. Step 5: Solve for x
    x = 9,706,844,804.95/112,707.76
  6. Step 6: Final answer
    x = 86,124.01

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