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Finding the Fourth Proportional to 136,635.66, 204,993.18 and 56,658.96

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Solution

The fourth proportional to 136,635.66, 204,993.18 and 56,658.96 is: 85,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,635.66 : 204,993.18 = 56,658.96 : x
  2. Step 2: Convert to fraction form
    136,635.66/204,993.18 = 56,658.96/x
  3. Step 3: Cross multiply
    136,635.66x = 204,993.18 × 56,658.96
  4. Step 4: Simplify right side
    136,635.66x = 11,614,700,385.89
  5. Step 5: Solve for x
    x = 11,614,700,385.89/136,635.66
  6. Step 6: Final answer
    x = 85,004.90

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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.