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Finding the Fourth Proportional to 66,846.60, 92,213.82 and 45,329.07

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Solution

The fourth proportional to 66,846.60, 92,213.82 and 45,329.07 is: 62,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,846.60 : 92,213.82 = 45,329.07 : x
  2. Step 2: Convert to fraction form
    66,846.60/92,213.82 = 45,329.07/x
  3. Step 3: Cross multiply
    66,846.60x = 92,213.82 × 45,329.07
  4. Step 4: Simplify right side
    66,846.60x = 4,179,966,701.75
  5. Step 5: Solve for x
    x = 4,179,966,701.75/66,846.60
  6. Step 6: Final answer
    x = 62,530.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.