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Finding the Fourth Proportional to 173,930, 260,891.28 and 47,570.24

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Solution

The fourth proportional to 173,930, 260,891.28 and 47,570.24 is: 71,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,930 : 260,891.28 = 47,570.24 : x
  2. Step 2: Convert to fraction form
    173,930/260,891.28 = 47,570.24/x
  3. Step 3: Cross multiply
    173,930x = 260,891.28 × 47,570.24
  4. Step 4: Simplify right side
    173,930x = 12,410,660,803.51
  5. Step 5: Solve for x
    x = 12,410,660,803.51/173,930
  6. Step 6: Final answer
    x = 71,354.34

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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.