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Finding the Fourth Proportional to 61,471.70, 92,207.55 and 54,905.30

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Solution

The fourth proportional to 61,471.70, 92,207.55 and 54,905.30 is: 82,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,471.70 : 92,207.55 = 54,905.30 : x
  2. Step 2: Convert to fraction form
    61,471.70/92,207.55 = 54,905.30/x
  3. Step 3: Cross multiply
    61,471.70x = 92,207.55 × 54,905.30
  4. Step 4: Simplify right side
    61,471.70x = 5,062,683,195.02
  5. Step 5: Solve for x
    x = 5,062,683,195.02/61,471.70
  6. Step 6: Final answer
    x = 82,357.95

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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.