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Finding the Fourth Proportional to 161,292.45, 241,987.89 and 82,462.04

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Solution

The fourth proportional to 161,292.45, 241,987.89 and 82,462.04 is: 123,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,292.45 : 241,987.89 = 82,462.04 : x
  2. Step 2: Convert to fraction form
    161,292.45/241,987.89 = 82,462.04/x
  3. Step 3: Cross multiply
    161,292.45x = 241,987.89 × 82,462.04
  4. Step 4: Simplify right side
    161,292.45x = 19,954,813,854.76
  5. Step 5: Solve for x
    x = 19,954,813,854.76/161,292.45
  6. Step 6: Final answer
    x = 123,718.21

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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.