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Finding the Fourth Proportional to 173,331.40, 260,021.40 and 68,125.90

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Solution

The fourth proportional to 173,331.40, 260,021.40 and 68,125.90 is: 102,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,331.40 : 260,021.40 = 68,125.90 : x
  2. Step 2: Convert to fraction form
    173,331.40/260,021.40 = 68,125.90/x
  3. Step 3: Cross multiply
    173,331.40x = 260,021.40 × 68,125.90
  4. Step 4: Simplify right side
    173,331.40x = 17,714,191,894.26
  5. Step 5: Solve for x
    x = 17,714,191,894.26/173,331.40
  6. Step 6: Final answer
    x = 102,198.40

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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.