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Finding the Fourth Proportional to 97,662.60, 134,773.74 and 55,221.30

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Solution

The fourth proportional to 97,662.60, 134,773.74 and 55,221.30 is: 76,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,662.60 : 134,773.74 = 55,221.30 : x
  2. Step 2: Convert to fraction form
    97,662.60/134,773.74 = 55,221.30/x
  3. Step 3: Cross multiply
    97,662.60x = 134,773.74 × 55,221.30
  4. Step 4: Simplify right side
    97,662.60x = 7,442,381,128.66
  5. Step 5: Solve for x
    x = 7,442,381,128.66/97,662.60
  6. Step 6: Final answer
    x = 76,205.03

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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.