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Finding the Fourth Proportional to 71,192.88, 106,964.40 and 53,609.36

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Solution

The fourth proportional to 71,192.88, 106,964.40 and 53,609.36 is: 80,545.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,192.88 : 106,964.40 = 53,609.36 : x
  2. Step 2: Convert to fraction form
    71,192.88/106,964.40 = 53,609.36/x
  3. Step 3: Cross multiply
    71,192.88x = 106,964.40 × 53,609.36
  4. Step 4: Simplify right side
    71,192.88x = 5,734,293,026.78
  5. Step 5: Solve for x
    x = 5,734,293,026.78/71,192.88
  6. Step 6: Final answer
    x = 80,545.88

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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.