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Finding the Fourth Proportional to 71,226.79, 106,855.31 and 26,852.47

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Solution

The fourth proportional to 71,226.79, 106,855.31 and 26,852.47 is: 40,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,226.79 : 106,855.31 = 26,852.47 : x
  2. Step 2: Convert to fraction form
    71,226.79/106,855.31 = 26,852.47/x
  3. Step 3: Cross multiply
    71,226.79x = 106,855.31 × 26,852.47
  4. Step 4: Simplify right side
    71,226.79x = 2,869,329,006.12
  5. Step 5: Solve for x
    x = 2,869,329,006.12/71,226.79
  6. Step 6: Final answer
    x = 40,284.41

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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.