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Finding the Fourth Proportional to 123,396.94, 185,169.42 and 53,276.20

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Solution

The fourth proportional to 123,396.94, 185,169.42 and 53,276.20 is: 79,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,396.94 : 185,169.42 = 53,276.20 : x
  2. Step 2: Convert to fraction form
    123,396.94/185,169.42 = 53,276.20/x
  3. Step 3: Cross multiply
    123,396.94x = 185,169.42 × 53,276.20
  4. Step 4: Simplify right side
    123,396.94x = 9,865,123,053.80
  5. Step 5: Solve for x
    x = 9,865,123,053.80/123,396.94
  6. Step 6: Final answer
    x = 79,946.25

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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.