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Finding the Fourth Proportional to 351,657.70, 527,486.55 and 114,943.30

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Solution

The fourth proportional to 351,657.70, 527,486.55 and 114,943.30 is: 172,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,657.70 : 527,486.55 = 114,943.30 : x
  2. Step 2: Convert to fraction form
    351,657.70/527,486.55 = 114,943.30/x
  3. Step 3: Cross multiply
    351,657.70x = 527,486.55 × 114,943.30
  4. Step 4: Simplify right side
    351,657.70x = 60,631,044,762.62
  5. Step 5: Solve for x
    x = 60,631,044,762.62/351,657.70
  6. Step 6: Final answer
    x = 172,414.95

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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.