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Finding the Fourth Proportional to 61,803.20, 92,704.80 and 60,709.70

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Solution

The fourth proportional to 61,803.20, 92,704.80 and 60,709.70 is: 91,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803.20 : 92,704.80 = 60,709.70 : x
  2. Step 2: Convert to fraction form
    61,803.20/92,704.80 = 60,709.70/x
  3. Step 3: Cross multiply
    61,803.20x = 92,704.80 × 60,709.70
  4. Step 4: Simplify right side
    61,803.20x = 5,628,080,596.56
  5. Step 5: Solve for x
    x = 5,628,080,596.56/61,803.20
  6. Step 6: Final answer
    x = 91,064.55

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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.