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Finding the Fourth Proportional to 69,950.40, 104,808.96 and 49,136.64

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Solution

The fourth proportional to 69,950.40, 104,808.96 and 49,136.64 is: 73,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,950.40 : 104,808.96 = 49,136.64 : x
  2. Step 2: Convert to fraction form
    69,950.40/104,808.96 = 49,136.64/x
  3. Step 3: Cross multiply
    69,950.40x = 104,808.96 × 49,136.64
  4. Step 4: Simplify right side
    69,950.40x = 5,149,960,136.29
  5. Step 5: Solve for x
    x = 5,149,960,136.29/69,950.40
  6. Step 6: Final answer
    x = 73,623.03

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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.