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Finding the Fourth Proportional to 71,569.88, 107,377.50 and 55,828.88

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Solution

The fourth proportional to 71,569.88, 107,377.50 and 55,828.88 is: 83,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,569.88 : 107,377.50 = 55,828.88 : x
  2. Step 2: Convert to fraction form
    71,569.88/107,377.50 = 55,828.88/x
  3. Step 3: Cross multiply
    71,569.88x = 107,377.50 × 55,828.88
  4. Step 4: Simplify right side
    71,569.88x = 5,994,765,562.20
  5. Step 5: Solve for x
    x = 5,994,765,562.20/71,569.88
  6. Step 6: Final answer
    x = 83,761.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.