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Finding the Fourth Proportional to 292,387.12, 438,574.20 and 82,019.59

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Solution

The fourth proportional to 292,387.12, 438,574.20 and 82,019.59 is: 123,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,387.12 : 438,574.20 = 82,019.59 : x
  2. Step 2: Convert to fraction form
    292,387.12/438,574.20 = 82,019.59/x
  3. Step 3: Cross multiply
    292,387.12x = 438,574.20 × 82,019.59
  4. Step 4: Simplify right side
    292,387.12x = 35,971,676,068.58
  5. Step 5: Solve for x
    x = 35,971,676,068.58/292,387.12
  6. Step 6: Final answer
    x = 123,027.57

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