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Finding the Fourth Proportional to 73,316.52, 109,913.22 and 51,064.20

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Solution

The fourth proportional to 73,316.52, 109,913.22 and 51,064.20 is: 76,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,316.52 : 109,913.22 = 51,064.20 : x
  2. Step 2: Convert to fraction form
    73,316.52/109,913.22 = 51,064.20/x
  3. Step 3: Cross multiply
    73,316.52x = 109,913.22 × 51,064.20
  4. Step 4: Simplify right side
    73,316.52x = 5,612,630,648.72
  5. Step 5: Solve for x
    x = 5,612,630,648.72/73,316.52
  6. Step 6: Final answer
    x = 76,553.42

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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.