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Finding the Fourth Proportional to 104,178.39, 143,766.02 and 56,431.92

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Solution

The fourth proportional to 104,178.39, 143,766.02 and 56,431.92 is: 77,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,178.39 : 143,766.02 = 56,431.92 : x
  2. Step 2: Convert to fraction form
    104,178.39/143,766.02 = 56,431.92/x
  3. Step 3: Cross multiply
    104,178.39x = 143,766.02 × 56,431.92
  4. Step 4: Simplify right side
    104,178.39x = 8,112,993,219.56
  5. Step 5: Solve for x
    x = 8,112,993,219.56/104,178.39
  6. Step 6: Final answer
    x = 77,875.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.