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Finding the Fourth Proportional to 359,553.78, 539,014.74 and 146,500.85

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Solution

The fourth proportional to 359,553.78, 539,014.74 and 146,500.85 is: 219,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,553.78 : 539,014.74 = 146,500.85 : x
  2. Step 2: Convert to fraction form
    359,553.78/539,014.74 = 146,500.85/x
  3. Step 3: Cross multiply
    359,553.78x = 539,014.74 × 146,500.85
  4. Step 4: Simplify right side
    359,553.78x = 78,966,114,877.46
  5. Step 5: Solve for x
    x = 78,966,114,877.46/359,553.78
  6. Step 6: Final answer
    x = 219,622.54

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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.