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Finding the Fourth Proportional to 119,949.92, 179,695.92 and 67,199.84

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Solution

The fourth proportional to 119,949.92, 179,695.92 and 67,199.84 is: 100,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,949.92 : 179,695.92 = 67,199.84 : x
  2. Step 2: Convert to fraction form
    119,949.92/179,695.92 = 67,199.84/x
  3. Step 3: Cross multiply
    119,949.92x = 179,695.92 × 67,199.84
  4. Step 4: Simplify right side
    119,949.92x = 12,075,537,072.65
  5. Step 5: Solve for x
    x = 12,075,537,072.65/119,949.92
  6. Step 6: Final answer
    x = 100,671.49

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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.