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Finding the Fourth Proportional to 72,754.98, 109,190.79 and 37,704.66

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Solution

The fourth proportional to 72,754.98, 109,190.79 and 37,704.66 is: 56,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,754.98 : 109,190.79 = 37,704.66 : x
  2. Step 2: Convert to fraction form
    72,754.98/109,190.79 = 37,704.66/x
  3. Step 3: Cross multiply
    72,754.98x = 109,190.79 × 37,704.66
  4. Step 4: Simplify right side
    72,754.98x = 4,117,001,612.08
  5. Step 5: Solve for x
    x = 4,117,001,612.08/72,754.98
  6. Step 6: Final answer
    x = 56,587.21

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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.