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Finding the Fourth Proportional to 66,803.89, 92,306.64 and 52,576.78

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Solution

The fourth proportional to 66,803.89, 92,306.64 and 52,576.78 is: 72,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803.89 : 92,306.64 = 52,576.78 : x
  2. Step 2: Convert to fraction form
    66,803.89/92,306.64 = 52,576.78/x
  3. Step 3: Cross multiply
    66,803.89x = 92,306.64 × 52,576.78
  4. Step 4: Simplify right side
    66,803.89x = 4,853,185,903.82
  5. Step 5: Solve for x
    x = 4,853,185,903.82/66,803.89
  6. Step 6: Final answer
    x = 72,648.25

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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.