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Finding the Fourth Proportional to 173,542.95, 260,379.23 and 68,435.19

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Solution

The fourth proportional to 173,542.95, 260,379.23 and 68,435.19 is: 102,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,542.95 : 260,379.23 = 68,435.19 : x
  2. Step 2: Convert to fraction form
    173,542.95/260,379.23 = 68,435.19/x
  3. Step 3: Cross multiply
    173,542.95x = 260,379.23 × 68,435.19
  4. Step 4: Simplify right side
    173,542.95x = 17,819,101,734.93
  5. Step 5: Solve for x
    x = 17,819,101,734.93/173,542.95
  6. Step 6: Final answer
    x = 102,678.34

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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.