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Finding the Fourth Proportional to 73,157.92, 100,966.12 and 41,328.87

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Solution

The fourth proportional to 73,157.92, 100,966.12 and 41,328.87 is: 57,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.92 : 100,966.12 = 41,328.87 : x
  2. Step 2: Convert to fraction form
    73,157.92/100,966.12 = 41,328.87/x
  3. Step 3: Cross multiply
    73,157.92x = 100,966.12 × 41,328.87
  4. Step 4: Simplify right side
    73,157.92x = 4,172,815,143.05
  5. Step 5: Solve for x
    x = 4,172,815,143.05/73,157.92
  6. Step 6: Final answer
    x = 57,038.46

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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.