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Finding the Fourth Proportional to 71,317.40, 106,976.10 and 34,453.40

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Solution

The fourth proportional to 71,317.40, 106,976.10 and 34,453.40 is: 51,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317.40 : 106,976.10 = 34,453.40 : x
  2. Step 2: Convert to fraction form
    71,317.40/106,976.10 = 34,453.40/x
  3. Step 3: Cross multiply
    71,317.40x = 106,976.10 × 34,453.40
  4. Step 4: Simplify right side
    71,317.40x = 3,685,690,363.74
  5. Step 5: Solve for x
    x = 3,685,690,363.74/71,317.40
  6. Step 6: Final answer
    x = 51,680.10

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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.