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Finding the Fourth Proportional to 81,763.60, 122,675.64 and 35,052.88

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Solution

The fourth proportional to 81,763.60, 122,675.64 and 35,052.88 is: 52,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,763.60 : 122,675.64 = 35,052.88 : x
  2. Step 2: Convert to fraction form
    81,763.60/122,675.64 = 35,052.88/x
  3. Step 3: Cross multiply
    81,763.60x = 122,675.64 × 35,052.88
  4. Step 4: Simplify right side
    81,763.60x = 4,300,134,487.84
  5. Step 5: Solve for x
    x = 4,300,134,487.84/81,763.60
  6. Step 6: Final answer
    x = 52,592.28

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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.