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Finding the Fourth Proportional to 93,644.25, 129,227.10 and 51,202.78

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Solution

The fourth proportional to 93,644.25, 129,227.10 and 51,202.78 is: 70,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,644.25 : 129,227.10 = 51,202.78 : x
  2. Step 2: Convert to fraction form
    93,644.25/129,227.10 = 51,202.78/x
  3. Step 3: Cross multiply
    93,644.25x = 129,227.10 × 51,202.78
  4. Step 4: Simplify right side
    93,644.25x = 6,616,786,932.87
  5. Step 5: Solve for x
    x = 6,616,786,932.87/93,644.25
  6. Step 6: Final answer
    x = 70,658.76

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1.5x scale

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.