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Finding the Fourth Proportional to 74,210.31, 102,423.39 and 56,275.09

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Solution

The fourth proportional to 74,210.31, 102,423.39 and 56,275.09 is: 77,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,210.31 : 102,423.39 = 56,275.09 : x
  2. Step 2: Convert to fraction form
    74,210.31/102,423.39 = 56,275.09/x
  3. Step 3: Cross multiply
    74,210.31x = 102,423.39 × 56,275.09
  4. Step 4: Simplify right side
    74,210.31x = 5,763,885,023.27
  5. Step 5: Solve for x
    x = 5,763,885,023.27/74,210.31
  6. Step 6: Final answer
    x = 77,669.60

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