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Finding the Fourth Proportional to 104,682.81, 144,460.92 and 56,936.15

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Solution

The fourth proportional to 104,682.81, 144,460.92 and 56,936.15 is: 78,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,682.81 : 144,460.92 = 56,936.15 : x
  2. Step 2: Convert to fraction form
    104,682.81/144,460.92 = 56,936.15/x
  3. Step 3: Cross multiply
    104,682.81x = 144,460.92 × 56,936.15
  4. Step 4: Simplify right side
    104,682.81x = 8,225,048,932.37
  5. Step 5: Solve for x
    x = 8,225,048,932.37/104,682.81
  6. Step 6: Final answer
    x = 78,571.16

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Why These Related Problems?

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