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Finding the Fourth Proportional to 71,141.40, 106,571.70 and 36,106.20

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Solution

The fourth proportional to 71,141.40, 106,571.70 and 36,106.20 is: 54,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.40 : 106,571.70 = 36,106.20 : x
  2. Step 2: Convert to fraction form
    71,141.40/106,571.70 = 36,106.20/x
  3. Step 3: Cross multiply
    71,141.40x = 106,571.70 × 36,106.20
  4. Step 4: Simplify right side
    71,141.40x = 3,847,899,114.54
  5. Step 5: Solve for x
    x = 3,847,899,114.54/71,141.40
  6. Step 6: Final answer
    x = 54,088.04

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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.