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Finding the Fourth Proportional to 173,403.40, 260,105.10 and 84,829.90

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Solution

The fourth proportional to 173,403.40, 260,105.10 and 84,829.90 is: 127,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,403.40 : 260,105.10 = 84,829.90 : x
  2. Step 2: Convert to fraction form
    173,403.40/260,105.10 = 84,829.90/x
  3. Step 3: Cross multiply
    173,403.40x = 260,105.10 × 84,829.90
  4. Step 4: Simplify right side
    173,403.40x = 22,064,689,622.49
  5. Step 5: Solve for x
    x = 22,064,689,622.49/173,403.40
  6. Step 6: Final answer
    x = 127,244.85

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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.