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Finding the Fourth Proportional to 73,055.80, 109,626.90 and 53,284.60

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Solution

The fourth proportional to 73,055.80, 109,626.90 and 53,284.60 is: 79,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,055.80 : 109,626.90 = 53,284.60 : x
  2. Step 2: Convert to fraction form
    73,055.80/109,626.90 = 53,284.60/x
  3. Step 3: Cross multiply
    73,055.80x = 109,626.90 × 53,284.60
  4. Step 4: Simplify right side
    73,055.80x = 5,841,425,515.74
  5. Step 5: Solve for x
    x = 5,841,425,515.74/73,055.80
  6. Step 6: Final answer
    x = 79,958.41

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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.