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Finding the Fourth Proportional to 61,394.90, 92,120.30 and 29,787.90

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Solution

The fourth proportional to 61,394.90, 92,120.30 and 29,787.90 is: 44,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,394.90 : 92,120.30 = 29,787.90 : x
  2. Step 2: Convert to fraction form
    61,394.90/92,120.30 = 29,787.90/x
  3. Step 3: Cross multiply
    61,394.90x = 92,120.30 × 29,787.90
  4. Step 4: Simplify right side
    61,394.90x = 2,744,070,284.37
  5. Step 5: Solve for x
    x = 2,744,070,284.37/61,394.90
  6. Step 6: Final answer
    x = 44,695.41

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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.