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Finding the Fourth Proportional to 125,550.78, 173,217.84 and 71,095.50

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Solution

The fourth proportional to 125,550.78, 173,217.84 and 71,095.50 is: 98,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,550.78 : 173,217.84 = 71,095.50 : x
  2. Step 2: Convert to fraction form
    125,550.78/173,217.84 = 71,095.50/x
  3. Step 3: Cross multiply
    125,550.78x = 173,217.84 × 71,095.50
  4. Step 4: Simplify right side
    125,550.78x = 12,315,008,943.72
  5. Step 5: Solve for x
    x = 12,315,008,943.72/125,550.78
  6. Step 6: Final answer
    x = 98,087.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.