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Finding the Fourth Proportional to 71,122.83, 106,751.21 and 36,087.63

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Solution

The fourth proportional to 71,122.83, 106,751.21 and 36,087.63 is: 54,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,122.83 : 106,751.21 = 36,087.63 : x
  2. Step 2: Convert to fraction form
    71,122.83/106,751.21 = 36,087.63/x
  3. Step 3: Cross multiply
    71,122.83x = 106,751.21 × 36,087.63
  4. Step 4: Simplify right side
    71,122.83x = 3,852,397,988.09
  5. Step 5: Solve for x
    x = 3,852,397,988.09/71,122.83
  6. Step 6: Final answer
    x = 54,165.42

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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.