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Finding the Fourth Proportional to 144,715.40, 217,073.10 and 51,230.60

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Solution

The fourth proportional to 144,715.40, 217,073.10 and 51,230.60 is: 76,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,715.40 : 217,073.10 = 51,230.60 : x
  2. Step 2: Convert to fraction form
    144,715.40/217,073.10 = 51,230.60/x
  3. Step 3: Cross multiply
    144,715.40x = 217,073.10 × 51,230.60
  4. Step 4: Simplify right side
    144,715.40x = 11,120,785,156.86
  5. Step 5: Solve for x
    x = 11,120,785,156.86/144,715.40
  6. Step 6: Final answer
    x = 76,845.90

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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.