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Finding the Fourth Proportional to 92,814.80, 139,265.40 and 48,491.60

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Solution

The fourth proportional to 92,814.80, 139,265.40 and 48,491.60 is: 72,759.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,814.80 : 139,265.40 = 48,491.60 : x
  2. Step 2: Convert to fraction form
    92,814.80/139,265.40 = 48,491.60/x
  3. Step 3: Cross multiply
    92,814.80x = 139,265.40 × 48,491.60
  4. Step 4: Simplify right side
    92,814.80x = 6,753,202,070.64
  5. Step 5: Solve for x
    x = 6,753,202,070.64/92,814.80
  6. Step 6: Final answer
    x = 72,759.97

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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.