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Finding the Fourth Proportional to 84,369.72, 126,751.41 and 49,333.98

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Solution

The fourth proportional to 84,369.72, 126,751.41 and 49,333.98 is: 74,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,369.72 : 126,751.41 = 49,333.98 : x
  2. Step 2: Convert to fraction form
    84,369.72/126,751.41 = 49,333.98/x
  3. Step 3: Cross multiply
    84,369.72x = 126,751.41 × 49,333.98
  4. Step 4: Simplify right side
    84,369.72x = 6,253,151,525.91
  5. Step 5: Solve for x
    x = 6,253,151,525.91/84,369.72
  6. Step 6: Final answer
    x = 74,116.06

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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.