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Finding the Fourth Proportional to 168,801.30, 253,043.55 and 63,690.90

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Solution

The fourth proportional to 168,801.30, 253,043.55 and 63,690.90 is: 95,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,801.30 : 253,043.55 = 63,690.90 : x
  2. Step 2: Convert to fraction form
    168,801.30/253,043.55 = 63,690.90/x
  3. Step 3: Cross multiply
    168,801.30x = 253,043.55 × 63,690.90
  4. Step 4: Simplify right side
    168,801.30x = 16,116,571,438.70
  5. Step 5: Solve for x
    x = 16,116,571,438.70/168,801.30
  6. Step 6: Final answer
    x = 95,476.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.