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Finding the Fourth Proportional to 72,654.98, 108,923.66 and 22,709.36

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Solution

The fourth proportional to 72,654.98, 108,923.66 and 22,709.36 is: 34,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654.98 : 108,923.66 = 22,709.36 : x
  2. Step 2: Convert to fraction form
    72,654.98/108,923.66 = 22,709.36/x
  3. Step 3: Cross multiply
    72,654.98x = 108,923.66 × 22,709.36
  4. Step 4: Simplify right side
    72,654.98x = 2,473,586,766.22
  5. Step 5: Solve for x
    x = 2,473,586,766.22/72,654.98
  6. Step 6: Final answer
    x = 34,045.66

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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.