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Finding the Fourth Proportional to 61,948.60, 92,922.90 and 51,013.60

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Solution

The fourth proportional to 61,948.60, 92,922.90 and 51,013.60 is: 76,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,948.60 : 92,922.90 = 51,013.60 : x
  2. Step 2: Convert to fraction form
    61,948.60/92,922.90 = 51,013.60/x
  3. Step 3: Cross multiply
    61,948.60x = 92,922.90 × 51,013.60
  4. Step 4: Simplify right side
    61,948.60x = 4,740,331,651.44
  5. Step 5: Solve for x
    x = 4,740,331,651.44/61,948.60
  6. Step 6: Final answer
    x = 76,520.40

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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.