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Finding the Fourth Proportional to 173,806.60, 260,645.10 and 68,603.80

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Solution

The fourth proportional to 173,806.60, 260,645.10 and 68,603.80 is: 102,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,806.60 : 260,645.10 = 68,603.80 : x
  2. Step 2: Convert to fraction form
    173,806.60/260,645.10 = 68,603.80/x
  3. Step 3: Cross multiply
    173,806.60x = 260,645.10 × 68,603.80
  4. Step 4: Simplify right side
    173,806.60x = 17,881,244,311.38
  5. Step 5: Solve for x
    x = 17,881,244,311.38/173,806.60
  6. Step 6: Final answer
    x = 102,880.12

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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.