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Finding the Fourth Proportional to 372,914.20, 559,371.30 and 123,596.20

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Solution

The fourth proportional to 372,914.20, 559,371.30 and 123,596.20 is: 185,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,914.20 : 559,371.30 = 123,596.20 : x
  2. Step 2: Convert to fraction form
    372,914.20/559,371.30 = 123,596.20/x
  3. Step 3: Cross multiply
    372,914.20x = 559,371.30 × 123,596.20
  4. Step 4: Simplify right side
    372,914.20x = 69,136,167,069.06
  5. Step 5: Solve for x
    x = 69,136,167,069.06/372,914.20
  6. Step 6: Final answer
    x = 185,394.30

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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.