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Finding the Fourth Proportional to 82,402.40, 123,595.04 and 55,918.40

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Solution

The fourth proportional to 82,402.40, 123,595.04 and 55,918.40 is: 83,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,402.40 : 123,595.04 = 55,918.40 : x
  2. Step 2: Convert to fraction form
    82,402.40/123,595.04 = 55,918.40/x
  3. Step 3: Cross multiply
    82,402.40x = 123,595.04 × 55,918.40
  4. Step 4: Simplify right side
    82,402.40x = 6,911,236,884.74
  5. Step 5: Solve for x
    x = 6,911,236,884.74/82,402.40
  6. Step 6: Final answer
    x = 83,871.79

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