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Finding the Fourth Proportional to 104,160.51, 143,744.13 and 63,896.49

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Solution

The fourth proportional to 104,160.51, 143,744.13 and 63,896.49 is: 88,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,160.51 : 143,744.13 = 63,896.49 : x
  2. Step 2: Convert to fraction form
    104,160.51/143,744.13 = 63,896.49/x
  3. Step 3: Cross multiply
    104,160.51x = 143,744.13 × 63,896.49
  4. Step 4: Simplify right side
    104,160.51x = 9,184,745,365.10
  5. Step 5: Solve for x
    x = 9,184,745,365.10/104,160.51
  6. Step 6: Final answer
    x = 88,178.77

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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.