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Finding the Fourth Proportional to 79,495.29, 109,704.78 and 45,503.64

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Solution

The fourth proportional to 79,495.29, 109,704.78 and 45,503.64 is: 62,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,495.29 : 109,704.78 = 45,503.64 : x
  2. Step 2: Convert to fraction form
    79,495.29/109,704.78 = 45,503.64/x
  3. Step 3: Cross multiply
    79,495.29x = 109,704.78 × 45,503.64
  4. Step 4: Simplify right side
    79,495.29x = 4,991,966,815.40
  5. Step 5: Solve for x
    x = 4,991,966,815.40/79,495.29
  6. Step 6: Final answer
    x = 62,795.76

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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.