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Finding the Fourth Proportional to 71,816.40, 99,118.80 and 41,596.80

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Solution

The fourth proportional to 71,816.40, 99,118.80 and 41,596.80 is: 57,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.40 : 99,118.80 = 41,596.80 : x
  2. Step 2: Convert to fraction form
    71,816.40/99,118.80 = 41,596.80/x
  3. Step 3: Cross multiply
    71,816.40x = 99,118.80 × 41,596.80
  4. Step 4: Simplify right side
    71,816.40x = 4,123,024,899.84
  5. Step 5: Solve for x
    x = 4,123,024,899.84/71,816.40
  6. Step 6: Final answer
    x = 57,410.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.