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Finding the Fourth Proportional to 272,913.40, 409,224.30 and 114,963.40

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Solution

The fourth proportional to 272,913.40, 409,224.30 and 114,963.40 is: 172,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,913.40 : 409,224.30 = 114,963.40 : x
  2. Step 2: Convert to fraction form
    272,913.40/409,224.30 = 114,963.40/x
  3. Step 3: Cross multiply
    272,913.40x = 409,224.30 × 114,963.40
  4. Step 4: Simplify right side
    272,913.40x = 47,045,816,890.62
  5. Step 5: Solve for x
    x = 47,045,816,890.62/272,913.40
  6. Step 6: Final answer
    x = 172,383.68

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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.