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Finding the Fourth Proportional to 74,433.60, 111,520.80 and 48,124.80

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Solution

The fourth proportional to 74,433.60, 111,520.80 and 48,124.80 is: 72,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,433.60 : 111,520.80 = 48,124.80 : x
  2. Step 2: Convert to fraction form
    74,433.60/111,520.80 = 48,124.80/x
  3. Step 3: Cross multiply
    74,433.60x = 111,520.80 × 48,124.80
  4. Step 4: Simplify right side
    74,433.60x = 5,366,916,195.84
  5. Step 5: Solve for x
    x = 5,366,916,195.84/74,433.60
  6. Step 6: Final answer
    x = 72,103.41

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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.