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Finding the Fourth Proportional to 73,223.20, 109,591.80 and 53,175.70

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Solution

The fourth proportional to 73,223.20, 109,591.80 and 53,175.70 is: 79,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,223.20 : 109,591.80 = 53,175.70 : x
  2. Step 2: Convert to fraction form
    73,223.20/109,591.80 = 53,175.70/x
  3. Step 3: Cross multiply
    73,223.20x = 109,591.80 × 53,175.70
  4. Step 4: Simplify right side
    73,223.20x = 5,827,620,679.26
  5. Step 5: Solve for x
    x = 5,827,620,679.26/73,223.20
  6. Step 6: Final answer
    x = 79,587.08

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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.