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Finding the Fourth Proportional to 61,157.43, 84,399.57 and 34,299.45

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Solution

The fourth proportional to 61,157.43, 84,399.57 and 34,299.45 is: 47,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,157.43 : 84,399.57 = 34,299.45 : x
  2. Step 2: Convert to fraction form
    61,157.43/84,399.57 = 34,299.45/x
  3. Step 3: Cross multiply
    61,157.43x = 84,399.57 × 34,299.45
  4. Step 4: Simplify right side
    61,157.43x = 2,894,858,831.24
  5. Step 5: Solve for x
    x = 2,894,858,831.24/61,157.43
  6. Step 6: Final answer
    x = 47,334.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.