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Finding the Fourth Proportional to 84,969.73, 127,471.61 and 47,582.97

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Solution

The fourth proportional to 84,969.73, 127,471.61 and 47,582.97 is: 71,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,969.73 : 127,471.61 = 47,582.97 : x
  2. Step 2: Convert to fraction form
    84,969.73/127,471.61 = 47,582.97/x
  3. Step 3: Cross multiply
    84,969.73x = 127,471.61 × 47,582.97
  4. Step 4: Simplify right side
    84,969.73x = 6,065,477,794.48
  5. Step 5: Solve for x
    x = 6,065,477,794.48/84,969.73
  6. Step 6: Final answer
    x = 71,383.98

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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.