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Finding the Fourth Proportional to 71,156.88, 106,741.80 and 36,087.12

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Solution

The fourth proportional to 71,156.88, 106,741.80 and 36,087.12 is: 54,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,156.88 : 106,741.80 = 36,087.12 : x
  2. Step 2: Convert to fraction form
    71,156.88/106,741.80 = 36,087.12/x
  3. Step 3: Cross multiply
    71,156.88x = 106,741.80 × 36,087.12
  4. Step 4: Simplify right side
    71,156.88x = 3,852,004,145.62
  5. Step 5: Solve for x
    x = 3,852,004,145.62/71,156.88
  6. Step 6: Final answer
    x = 54,133.97

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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.