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Finding the Fourth Proportional to 81,592.88, 112,569.29 and 53,314.97

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Solution

The fourth proportional to 81,592.88, 112,569.29 and 53,314.97 is: 73,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,592.88 : 112,569.29 = 53,314.97 : x
  2. Step 2: Convert to fraction form
    81,592.88/112,569.29 = 53,314.97/x
  3. Step 3: Cross multiply
    81,592.88x = 112,569.29 × 53,314.97
  4. Step 4: Simplify right side
    81,592.88x = 6,001,627,489.85
  5. Step 5: Solve for x
    x = 6,001,627,489.85/81,592.88
  6. Step 6: Final answer
    x = 73,555.78

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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.