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Finding the Fourth Proportional to 126,056, 173,957.28 and 69,472.64

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Solution

The fourth proportional to 126,056, 173,957.28 and 69,472.64 is: 95,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,056 : 173,957.28 = 69,472.64 : x
  2. Step 2: Convert to fraction form
    126,056/173,957.28 = 69,472.64/x
  3. Step 3: Cross multiply
    126,056x = 173,957.28 × 69,472.64
  4. Step 4: Simplify right side
    126,056x = 12,085,271,488.82
  5. Step 5: Solve for x
    x = 12,085,271,488.82/126,056
  6. Step 6: Final answer
    x = 95,872.24

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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.