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Finding the Fourth Proportional to 271,507.84, 407,098.08 and 121,721.04

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Solution

The fourth proportional to 271,507.84, 407,098.08 and 121,721.04 is: 182,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,507.84 : 407,098.08 = 121,721.04 : x
  2. Step 2: Convert to fraction form
    271,507.84/407,098.08 = 121,721.04/x
  3. Step 3: Cross multiply
    271,507.84x = 407,098.08 × 121,721.04
  4. Step 4: Simplify right side
    271,507.84x = 49,552,401,679.60
  5. Step 5: Solve for x
    x = 49,552,401,679.60/271,507.84
  6. Step 6: Final answer
    x = 182,508.18

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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.