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Finding the Fourth Proportional to 69,136.72, 103,599.40 and 46,563.92

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Solution

The fourth proportional to 69,136.72, 103,599.40 and 46,563.92 is: 69,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.72 : 103,599.40 = 46,563.92 : x
  2. Step 2: Convert to fraction form
    69,136.72/103,599.40 = 46,563.92/x
  3. Step 3: Cross multiply
    69,136.72x = 103,599.40 × 46,563.92
  4. Step 4: Simplify right side
    69,136.72x = 4,823,994,173.65
  5. Step 5: Solve for x
    x = 4,823,994,173.65/69,136.72
  6. Step 6: Final answer
    x = 69,774.70

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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.