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Finding the Fourth Proportional to 117,702.94, 162,433.20 and 63,991.58

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Solution

The fourth proportional to 117,702.94, 162,433.20 and 63,991.58 is: 88,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,702.94 : 162,433.20 = 63,991.58 : x
  2. Step 2: Convert to fraction form
    117,702.94/162,433.20 = 63,991.58/x
  3. Step 3: Cross multiply
    117,702.94x = 162,433.20 × 63,991.58
  4. Step 4: Simplify right side
    117,702.94x = 10,394,357,112.46
  5. Step 5: Solve for x
    x = 10,394,357,112.46/117,702.94
  6. Step 6: Final answer
    x = 88,310.09

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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.