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Finding the Fourth Proportional to 84,764.80, 127,204.80 and 47,324.80

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Solution

The fourth proportional to 84,764.80, 127,204.80 and 47,324.80 is: 71,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,764.80 : 127,204.80 = 47,324.80 : x
  2. Step 2: Convert to fraction form
    84,764.80/127,204.80 = 47,324.80/x
  3. Step 3: Cross multiply
    84,764.80x = 127,204.80 × 47,324.80
  4. Step 4: Simplify right side
    84,764.80x = 6,019,941,719.04
  5. Step 5: Solve for x
    x = 6,019,941,719.04/84,764.80
  6. Step 6: Final answer
    x = 71,019.36

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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.