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Finding the Fourth Proportional to 73,289.52, 109,872.72 and 51,037.20

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Solution

The fourth proportional to 73,289.52, 109,872.72 and 51,037.20 is: 76,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,289.52 : 109,872.72 = 51,037.20 : x
  2. Step 2: Convert to fraction form
    73,289.52/109,872.72 = 51,037.20/x
  3. Step 3: Cross multiply
    73,289.52x = 109,872.72 × 51,037.20
  4. Step 4: Simplify right side
    73,289.52x = 5,607,595,985.18
  5. Step 5: Solve for x
    x = 5,607,595,985.18/73,289.52
  6. Step 6: Final answer
    x = 76,512.93

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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.