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Finding the Fourth Proportional to 224,614.98, 309,960.51 and 122,638.56

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Solution

The fourth proportional to 224,614.98, 309,960.51 and 122,638.56 is: 169,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,614.98 : 309,960.51 = 122,638.56 : x
  2. Step 2: Convert to fraction form
    224,614.98/309,960.51 = 122,638.56/x
  3. Step 3: Cross multiply
    224,614.98x = 309,960.51 × 122,638.56
  4. Step 4: Simplify right side
    224,614.98x = 38,013,110,603.27
  5. Step 5: Solve for x
    x = 38,013,110,603.27/224,614.98
  6. Step 6: Final answer
    x = 169,236.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.