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Finding the Fourth Proportional to 126,064.64, 173,969.25 and 68,703.98

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Solution

The fourth proportional to 126,064.64, 173,969.25 and 68,703.98 is: 94,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,064.64 : 173,969.25 = 68,703.98 : x
  2. Step 2: Convert to fraction form
    126,064.64/173,969.25 = 68,703.98/x
  3. Step 3: Cross multiply
    126,064.64x = 173,969.25 × 68,703.98
  4. Step 4: Simplify right side
    126,064.64x = 11,952,379,872.62
  5. Step 5: Solve for x
    x = 11,952,379,872.62/126,064.64
  6. Step 6: Final answer
    x = 94,811.52

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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.