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Finding the Fourth Proportional to 473,121.20, 709,876.20 and 173,745.20

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Solution

The fourth proportional to 473,121.20, 709,876.20 and 173,745.20 is: 260,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,121.20 : 709,876.20 = 173,745.20 : x
  2. Step 2: Convert to fraction form
    473,121.20/709,876.20 = 173,745.20/x
  3. Step 3: Cross multiply
    473,121.20x = 709,876.20 × 173,745.20
  4. Step 4: Simplify right side
    473,121.20x = 123,337,582,344.24
  5. Step 5: Solve for x
    x = 123,337,582,344.24/473,121.20
  6. Step 6: Final answer
    x = 260,689.19

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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.