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Finding the Fourth Proportional to 173,446.80, 260,064.60 and 68,139.60

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Solution

The fourth proportional to 173,446.80, 260,064.60 and 68,139.60 is: 102,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,446.80 : 260,064.60 = 68,139.60 : x
  2. Step 2: Convert to fraction form
    173,446.80/260,064.60 = 68,139.60/x
  3. Step 3: Cross multiply
    173,446.80x = 260,064.60 × 68,139.60
  4. Step 4: Simplify right side
    173,446.80x = 17,720,697,818.16
  5. Step 5: Solve for x
    x = 17,720,697,818.16/173,446.80
  6. Step 6: Final answer
    x = 102,167.91

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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.