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Finding the Fourth Proportional to 144,946.70, 217,420.05 and 134,449.10

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Solution

The fourth proportional to 144,946.70, 217,420.05 and 134,449.10 is: 201,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,946.70 : 217,420.05 = 134,449.10 : x
  2. Step 2: Convert to fraction form
    144,946.70/217,420.05 = 134,449.10/x
  3. Step 3: Cross multiply
    144,946.70x = 217,420.05 × 134,449.10
  4. Step 4: Simplify right side
    144,946.70x = 29,231,930,044.46
  5. Step 5: Solve for x
    x = 29,231,930,044.46/144,946.70
  6. Step 6: Final answer
    x = 201,673.65

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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.