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Finding the Fourth Proportional to 84,994.62, 127,434.41 and 47,580.52

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Solution

The fourth proportional to 84,994.62, 127,434.41 and 47,580.52 is: 71,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,994.62 : 127,434.41 = 47,580.52 : x
  2. Step 2: Convert to fraction form
    84,994.62/127,434.41 = 47,580.52/x
  3. Step 3: Cross multiply
    84,994.62x = 127,434.41 × 47,580.52
  4. Step 4: Simplify right side
    84,994.62x = 6,063,395,493.69
  5. Step 5: Solve for x
    x = 6,063,395,493.69/84,994.62
  6. Step 6: Final answer
    x = 71,338.58

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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.