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Finding the Fourth Proportional to 81,634.88, 112,656.08 and 45,824.96

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Solution

The fourth proportional to 81,634.88, 112,656.08 and 45,824.96 is: 63,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,634.88 : 112,656.08 = 45,824.96 : x
  2. Step 2: Convert to fraction form
    81,634.88/112,656.08 = 45,824.96/x
  3. Step 3: Cross multiply
    81,634.88x = 112,656.08 × 45,824.96
  4. Step 4: Simplify right side
    81,634.88x = 5,162,460,359.76
  5. Step 5: Solve for x
    x = 5,162,460,359.76/81,634.88
  6. Step 6: Final answer
    x = 63,238.41

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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.