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Finding the Fourth Proportional to 117,480.94, 162,119.36 and 63,764.80

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Solution

The fourth proportional to 117,480.94, 162,119.36 and 63,764.80 is: 87,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,480.94 : 162,119.36 = 63,764.80 : x
  2. Step 2: Convert to fraction form
    117,480.94/162,119.36 = 63,764.80/x
  3. Step 3: Cross multiply
    117,480.94x = 162,119.36 × 63,764.80
  4. Step 4: Simplify right side
    117,480.94x = 10,337,509,414.76
  5. Step 5: Solve for x
    x = 10,337,509,414.76/117,480.94
  6. Step 6: Final answer
    x = 87,993.08

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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.