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Finding the Fourth Proportional to 55,230.70, 82,764.13 and 40,567.02

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Solution

The fourth proportional to 55,230.70, 82,764.13 and 40,567.02 is: 60,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.70 : 82,764.13 = 40,567.02 : x
  2. Step 2: Convert to fraction form
    55,230.70/82,764.13 = 40,567.02/x
  3. Step 3: Cross multiply
    55,230.70x = 82,764.13 × 40,567.02
  4. Step 4: Simplify right side
    55,230.70x = 3,357,494,116.99
  5. Step 5: Solve for x
    x = 3,357,494,116.99/55,230.70
  6. Step 6: Final answer
    x = 60,790.36

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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.