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Finding the Fourth Proportional to 125,839.65, 173,662.37 and 68,482.67

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Solution

The fourth proportional to 125,839.65, 173,662.37 and 68,482.67 is: 94,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,839.65 : 173,662.37 = 68,482.67 : x
  2. Step 2: Convert to fraction form
    125,839.65/173,662.37 = 68,482.67/x
  3. Step 3: Cross multiply
    125,839.65x = 173,662.37 × 68,482.67
  4. Step 4: Simplify right side
    125,839.65x = 11,892,863,039.08
  5. Step 5: Solve for x
    x = 11,892,863,039.08/125,839.65
  6. Step 6: Final answer
    x = 94,508.07

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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.