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Finding the Fourth Proportional to 114,920.70, 172,381.05 and 106,626.30

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Solution

The fourth proportional to 114,920.70, 172,381.05 and 106,626.30 is: 159,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,920.70 : 172,381.05 = 106,626.30 : x
  2. Step 2: Convert to fraction form
    114,920.70/172,381.05 = 106,626.30/x
  3. Step 3: Cross multiply
    114,920.70x = 172,381.05 × 106,626.30
  4. Step 4: Simplify right side
    114,920.70x = 18,380,353,551.62
  5. Step 5: Solve for x
    x = 18,380,353,551.62/114,920.70
  6. Step 6: Final answer
    x = 159,939.45

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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.