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Finding the Fourth Proportional to 119,995.92, 179,968.68 and 55,087

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Solution

The fourth proportional to 119,995.92, 179,968.68 and 55,087 is: 82,618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,995.92 : 179,968.68 = 55,087 : x
  2. Step 2: Convert to fraction form
    119,995.92/179,968.68 = 55,087/x
  3. Step 3: Cross multiply
    119,995.92x = 179,968.68 × 55,087
  4. Step 4: Simplify right side
    119,995.92x = 9,913,934,675.16
  5. Step 5: Solve for x
    x = 9,913,934,675.16/119,995.92
  6. Step 6: Final answer
    x = 82,618.93

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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.