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Finding the Fourth Proportional to 119,776.34, 179,673.66 and 69,861.44

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Solution

The fourth proportional to 119,776.34, 179,673.66 and 69,861.44 is: 104,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,776.34 : 179,673.66 = 69,861.44 : x
  2. Step 2: Convert to fraction form
    119,776.34/179,673.66 = 69,861.44/x
  3. Step 3: Cross multiply
    119,776.34x = 179,673.66 × 69,861.44
  4. Step 4: Simplify right side
    119,776.34x = 12,552,260,617.67
  5. Step 5: Solve for x
    x = 12,552,260,617.67/119,776.34
  6. Step 6: Final answer
    x = 104,797.50

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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.