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Finding the Fourth Proportional to 68,314.50, 102,278.54 and 36,220.46

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Solution

The fourth proportional to 68,314.50, 102,278.54 and 36,220.46 is: 54,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,314.50 : 102,278.54 = 36,220.46 : x
  2. Step 2: Convert to fraction form
    68,314.50/102,278.54 = 36,220.46/x
  3. Step 3: Cross multiply
    68,314.50x = 102,278.54 × 36,220.46
  4. Step 4: Simplify right side
    68,314.50x = 3,704,575,074.43
  5. Step 5: Solve for x
    x = 3,704,575,074.43/68,314.50
  6. Step 6: Final answer
    x = 54,228.24

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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.