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Finding the Fourth Proportional to 106,420.78, 159,631.17 and 36,300.70

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Solution

The fourth proportional to 106,420.78, 159,631.17 and 36,300.70 is: 54,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,420.78 : 159,631.17 = 36,300.70 : x
  2. Step 2: Convert to fraction form
    106,420.78/159,631.17 = 36,300.70/x
  3. Step 3: Cross multiply
    106,420.78x = 159,631.17 × 36,300.70
  4. Step 4: Simplify right side
    106,420.78x = 5,794,722,813.74
  5. Step 5: Solve for x
    x = 5,794,722,813.74/106,420.78
  6. Step 6: Final answer
    x = 54,451.05

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1.5x scale

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.