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Finding the Fourth Proportional to 83,141.76, 124,708.86 and 30,547.38

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Solution

The fourth proportional to 83,141.76, 124,708.86 and 30,547.38 is: 45,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,141.76 : 124,708.86 = 30,547.38 : x
  2. Step 2: Convert to fraction form
    83,141.76/124,708.86 = 30,547.38/x
  3. Step 3: Cross multiply
    83,141.76x = 124,708.86 × 30,547.38
  4. Step 4: Simplify right side
    83,141.76x = 3,809,528,935.79
  5. Step 5: Solve for x
    x = 3,809,528,935.79/83,141.76
  6. Step 6: Final answer
    x = 45,819.68

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