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Finding the Fourth Proportional to 71,936.26, 99,334.72 and 45,124.85

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Solution

The fourth proportional to 71,936.26, 99,334.72 and 45,124.85 is: 62,311.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.26 : 99,334.72 = 45,124.85 : x
  2. Step 2: Convert to fraction form
    71,936.26/99,334.72 = 45,124.85/x
  3. Step 3: Cross multiply
    71,936.26x = 99,334.72 × 45,124.85
  4. Step 4: Simplify right side
    71,936.26x = 4,482,464,114.17
  5. Step 5: Solve for x
    x = 4,482,464,114.17/71,936.26
  6. Step 6: Final answer
    x = 62,311.61

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1.5x scale

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.