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Finding the Fourth Proportional to 56,101.20, 84,085.20 and 29,792.40

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Solution

The fourth proportional to 56,101.20, 84,085.20 and 29,792.40 is: 44,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,101.20 : 84,085.20 = 29,792.40 : x
  2. Step 2: Convert to fraction form
    56,101.20/84,085.20 = 29,792.40/x
  3. Step 3: Cross multiply
    56,101.20x = 84,085.20 × 29,792.40
  4. Step 4: Simplify right side
    56,101.20x = 2,505,099,912.48
  5. Step 5: Solve for x
    x = 2,505,099,912.48/56,101.20
  6. Step 6: Final answer
    x = 44,653.23

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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.