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Finding the Fourth Proportional to 73,244.70, 109,771.29 and 39,955.80

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Solution

The fourth proportional to 73,244.70, 109,771.29 and 39,955.80 is: 59,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,244.70 : 109,771.29 = 39,955.80 : x
  2. Step 2: Convert to fraction form
    73,244.70/109,771.29 = 39,955.80/x
  3. Step 3: Cross multiply
    73,244.70x = 109,771.29 × 39,955.80
  4. Step 4: Simplify right side
    73,244.70x = 4,385,999,708.98
  5. Step 5: Solve for x
    x = 4,385,999,708.98/73,244.70
  6. Step 6: Final answer
    x = 59,881.46

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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.