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Finding the Fourth Proportional to 61,352.60, 92,115.30 and 48,219.80

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Solution

The fourth proportional to 61,352.60, 92,115.30 and 48,219.80 is: 72,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,352.60 : 92,115.30 = 48,219.80 : x
  2. Step 2: Convert to fraction form
    61,352.60/92,115.30 = 48,219.80/x
  3. Step 3: Cross multiply
    61,352.60x = 92,115.30 × 48,219.80
  4. Step 4: Simplify right side
    61,352.60x = 4,441,781,342.94
  5. Step 5: Solve for x
    x = 4,441,781,342.94/61,352.60
  6. Step 6: Final answer
    x = 72,397.61

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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.