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Finding the Fourth Proportional to 56,941.30, 85,411.95 and 56,163.70

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Solution

The fourth proportional to 56,941.30, 85,411.95 and 56,163.70 is: 84,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,941.30 : 85,411.95 = 56,163.70 : x
  2. Step 2: Convert to fraction form
    56,941.30/85,411.95 = 56,163.70/x
  3. Step 3: Cross multiply
    56,941.30x = 85,411.95 × 56,163.70
  4. Step 4: Simplify right side
    56,941.30x = 4,797,051,136.22
  5. Step 5: Solve for x
    x = 4,797,051,136.22/56,941.30
  6. Step 6: Final answer
    x = 84,245.55

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1.5x scale

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.