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Finding the Fourth Proportional to 468,553.50, 702,849.69 and 136,129.50

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Solution

The fourth proportional to 468,553.50, 702,849.69 and 136,129.50 is: 204,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,553.50 : 702,849.69 = 136,129.50 : x
  2. Step 2: Convert to fraction form
    468,553.50/702,849.69 = 136,129.50/x
  3. Step 3: Cross multiply
    468,553.50x = 702,849.69 × 136,129.50
  4. Step 4: Simplify right side
    468,553.50x = 95,678,576,874.86
  5. Step 5: Solve for x
    x = 95,678,576,874.86/468,553.50
  6. Step 6: Final answer
    x = 204,199.90

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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.